{"title":"Stainless Steel Check Valves","description":"\u003cp\u003eThis collection includes 304 and 316 stainless steel check valves in inline spring, barrel-spring, Y-pattern, swing, and dual-check styles, from 1\/4 in. to 2 in. Grades, ratings, connections, and sizes vary by product, so confirm the specification on each product page.\u003c\/p\u003e\n\n\u003ch3\u003eInline Check Valves\u003c\/h3\u003e\n\u003cp\u003eMidland's pages for its 304 stainless in-line check valves (949430, 949431, 949432 and 949435) list FPT x FPT connections and a fluoroelastomer seal. The 316 stainless inline series runs eight sizes from 1\/4 in. to 2 in., FNPT x FNPT, with a PTFE seat and 800 WOG across the series. \u003ca href=\"\/pages\/316-stainless-inline-check-valves-800-wog\" style=\"color:#FE8C03;text-decoration:underline\"\u003eBrowse all sizes in the 316 inline series\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eBarrel Spring Check Valves\u003c\/h3\u003e\n\u003cp\u003eMidland's pages for 949441 and 949445 list FPT x FPT connections, 300 psi WOG, PTFE seal, NBR seat. Confirm the size and rating for your service on each product page.\u003c\/p\u003e\n\n\u003ch3\u003eY-Pattern Spring Check Valves\u003c\/h3\u003e\n\u003cp\u003eY-pattern check valves seat the disc at an angle to the flow path. They are offered in stainless with female NPT threads (FPT x FPT). Confirm the size and rating on the product.\u003c\/p\u003e\n\n\u003ch3\u003eSwing Check Valves\u003c\/h3\u003e\n\u003cp\u003eSwing check valves use a hinged disc that opens with forward flow and closes against reverse flow. Midland's pages for 949353 and 949354 list a CF8M 316 stainless body and disc, a PTFE seal, FPT x FPT connections and 200 psi.\u003c\/p\u003e\n\n\u003ch3\u003eSingle and Dual Check Valves\u003c\/h3\u003e\n\u003cp\u003eMidland lists its 304 stainless single and dual check valves with FPT x MPT connections (34838, 34846) or male flare connections (34844, 34845). A replacement check ball and flare inlet for these valves are listed alongside them.\u003c\/p\u003e\n\n\u003ch3\u003eChoosing a Stainless Check Valve\u003c\/h3\u003e\n\u003cp\u003eGrade (304 or 316) and style are the visible differences between these valves; each product page states its grade and connection. For chemical compatibility, send us the media and operating conditions and we will confirm with the manufacturer before you order: \u003ca href=\"\/pages\/request-a-quote\" style=\"color:#FE8C03;text-decoration:underline\"\u003erequest selection help\u003c\/a\u003e. For other materials, see our \u003ca href=\"\/collections\/brass-check-valves\" style=\"color:#FE8C03;text-decoration:underline\"\u003ebrass check valves\u003c\/a\u003e and \u003ca href=\"\/collections\/pvc-check-valves\" style=\"color:#FE8C03;text-decoration:underline\"\u003ePVC check valves\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"single-check-valve-38-fptx38-mpt304ss-34846","title":"Single Check Valve, 3\/8 in. Female NPT x 3\/8 in. Male NPT, 304 Stainless Steel","description":"\u003cp\u003eThe \u003cstrong\u003eSingle Check Valve, 3\/8 in. Female NPT x 3\/8 in. Male NPT, 304 Stainless Steel\u003c\/strong\u003e (#34846) is a 304 stainless steel single check valve with female NPT x male NPT connections. Spring-loaded poppet design closes instantly on flow reversal.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpring Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCheck Type\u003c\/td\u003e\n\u003ctd\u003eSingle spring poppet\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT \/ Male NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e34846\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e304 Stainless Steel body\u003c\/li\u003e\n  \u003cli\u003eSingle spring poppet design\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded — closes automatically on flow reversal\u003c\/li\u003e\n  \u003cli\u003eStainless spring internals\u003c\/li\u003e\n  \u003cli\u003eCompact body for tight installation spaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types: Swing, Spring, Wafer, Ball\u003c\/a\u003e — Compare check valve styles\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/stainless-steel-check-valves\"\u003eShop Stainless Check Valves\u003c\/a\u003e — Full SS check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48629262909655,"sku":"34846","price":3.99,"currency_code":"USD","in_stock":true}]},{"product_id":"dual-check-valve-14-fpt-14-mpt-304ss-34838","title":"Dual Check Valve, 1\/4 in. Female NPT x 1\/4 in. Male NPT, 304 Stainless Steel","description":"\u003cp\u003eThe \u003cstrong\u003eDual Check Valve, 1\/4 in. Female NPT x 1\/4 in. Male NPT, 304 Stainless Steel\u003c\/strong\u003e (#34838) is a dual 304 stainless steel check valve with female NPT x male NPT connections, providing two-stage backflow protection in a single body.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpring Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCheck Type\u003c\/td\u003e\n\u003ctd\u003eDual poppet \/ spring\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT \/ Male NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e34838\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e304 Stainless Steel body\u003c\/li\u003e\n  \u003cli\u003eDual poppet \/ spring design\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded — closes automatically on flow reversal\u003c\/li\u003e\n  \u003cli\u003eStainless spring internals\u003c\/li\u003e\n  \u003cli\u003eCompact body for tight installation spaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types: Swing, Spring, Wafer, Ball\u003c\/a\u003e — Compare check valve styles\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/stainless-steel-check-valves\"\u003eShop Stainless Check Valves\u003c\/a\u003e — Full SS check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48629262942423,"sku":"34838","price":6.99,"currency_code":"USD","in_stock":true}]},{"product_id":"38-barrel-spring-check-valve-949442","title":"3\/8 in. Barrel Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e3\/8 in. Barrel Spring Check Valve\u003c\/strong\u003e (Midland part #949442) is a two-piece barrel-type spring check valve with a cast stainless steel body and female NPT threads on both ends.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949442\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eCF8M\/CF8 316 stainless steel (Midland)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisc\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrim (Midland)\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel bolt, 316\/304 stainless steel spring, CF8M\/CF8 stainless steel cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT), thread size 3\/8 - 18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure rating\u003c\/td\u003e\n\u003ctd\u003e300 psi WOG (Midland product page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet-to-outlet length\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949442. Ask us for any value not shown, including the temperature rating for your service; Midland's catalog and product data state it differently, and we confirm it for the exact model.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48629262975191,"sku":"949442","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949442_ad5b0dd9-fc5a-4575-8ffe-2ac983736ad5.jpg?v=1778884489"},{"product_id":"14-ss-f-x-f-spring-check-valve-949451","title":"1\/4 in. Stainless Steel Female x Female Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1\/4 in. Stainless Steel Female x Female Spring Check Valve\u003c\/strong\u003e (#949451) is a 316 stainless steel spring check valve that allows flow in one direction and closes to prevent reverse flow.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT both ends)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e1500 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003eRubber (ask us for the compound)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eAsk us — Midland's published figures differ; we confirm the rating for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e949451\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSpring-loaded — closes automatically on flow reversal\u003c\/li\u003e\n\u003cli\u003e316 stainless steel body\u003c\/li\u003e\n\u003cli\u003eFemale NPT x female NPT connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003eWater, oil and gas service and general industrial piping requiring backflow prevention. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types: Swing, Spring, Wafer, Ball\u003c\/a\u003e — Compare check valve styles\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/stainless-steel-check-valves\"\u003eShop Stainless Check Valves\u003c\/a\u003e — Full SS check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48629263007959,"sku":"949451","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949451_31ebb280-3235-47a5-b396-ca51c5113c30.jpg?v=1778884490"},{"product_id":"12-barrel-spring-check-valve-949443","title":"1\/2 in. Barrel Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1\/2 in. Barrel Spring Check Valve\u003c\/strong\u003e (Midland part #949443) is a two-piece barrel-type spring check valve with a cast stainless steel body and female NPT threads on both ends.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949443\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eCF8M\/CF8 316 stainless steel (Midland)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisc\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrim (Midland)\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel bolt, 316\/304 stainless steel spring, CF8M\/CF8 stainless steel cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT), thread size 1\/2 - 14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure rating\u003c\/td\u003e\n\u003ctd\u003e300 psi WOG (Midland product page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet-to-outlet length\u003c\/td\u003e\n\u003ctd\u003e2.24 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949443. Ask us for any value not shown, including the temperature rating for your service; Midland's catalog and product data state it differently, and we confirm it for the exact model.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48629263040727,"sku":"949443","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949443_a35e500c-7b5b-462e-bca9-38d97bba7ff9.jpg?v=1778884491"},{"product_id":"12-ss-mxf-spring-check-valve-949473","title":"1\/2 in. Stainless Steel Male x Female Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1\/2 in. Stainless Steel Male x Female Spring Check Valve\u003c\/strong\u003e (#949473) is a 316 stainless steel spring check valve that allows flow in one direction and closes to prevent reverse flow.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eMPT x FPT (male NPT x female NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e1500 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003eRubber (ask us for the compound)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eAsk us — Midland's published figures differ; we confirm the rating for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e949473\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSpring-loaded — closes automatically on flow reversal\u003c\/li\u003e\n\u003cli\u003e316 stainless steel body\u003c\/li\u003e\n\u003cli\u003eMale NPT x female NPT connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003eWater, oil and gas service and general industrial piping requiring backflow prevention. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order.\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types: Swing, Spring, Wafer, Ball\u003c\/a\u003e — Compare check valve styles\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/stainless-steel-check-valves\"\u003eShop Stainless Check Valves\u003c\/a\u003e — Full SS check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48629263073495,"sku":"949473","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949473_cdf3c60a-b0e0-403a-9e4a-96c52919ff4e.jpg?v=1778884492"},{"product_id":"12-ss-in-line-check-valve-949430","title":"1\/2 in. 304 Stainless Steel Inline Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1\/2 in. 304 Stainless Steel Inline Check Valve\u003c\/strong\u003e (Midland part #949430) is an inline check valve with a 304 stainless steel body, female NPT threads on both ends and a fluoroelastomer seal.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003eFluoroelastomer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT), thread size 1\/2 - 14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet-to-outlet length\u003c\/td\u003e\n\u003ctd\u003e2.43 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead content\u003c\/td\u003e\n\u003ctd\u003eMidland lists this model as \"Lead-Free\" (manufacturer designation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949430. Midland does not list a pressure or temperature rating on that page; ask us and we will confirm them with Midland before you order.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003ch2\u003eCross-References\u003c\/h2\u003e\u003cp\u003eCVS50, RL01-108SA\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48629263106263,"sku":"949430","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949430_9707adee-ec91-4c73-85cd-317a2b4f84f9.jpg?v=1778884493"},{"product_id":"34-316-ss-swing-check-valve-949354","title":"3\/4 in. 316 Stainless Steel Swing Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e3\/4 in. 316 Stainless Steel Swing Check Valve\u003c\/strong\u003e (#949354) is a 316 stainless steel swing check valve that uses a hinged disc rather than a spring to allow forward flow and seal against backflow.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDisc Material\u003c\/td\u003e\n\u003ctd\u003eCF8M 316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCheck Type\u003c\/td\u003e\n\u003ctd\u003eSwing disc\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e949354\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e316 Stainless Steel body\u003c\/li\u003e\n  \u003cli\u003eSwing disc design\u003c\/li\u003e\n  \u003cli\u003eCompact body for tight installation spaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types: Swing, Spring, Wafer, Ball\u003c\/a\u003e — Compare check valve styles\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/stainless-steel-check-valves\"\u003eShop Stainless Check Valves\u003c\/a\u003e — Full SS check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCross-References\u003c\/h2\u003e\u003cp\u003e60SSTH04, 909 1, SC602I\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48629263139031,"sku":"949354","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949354_823d67b7-f61f-4a6d-9d51-c85ff9446bc7.jpg?v=1778884494"},{"product_id":"34-ss-y-spring-check-valve-949484","title":"3\/4 in. Stainless Steel Y Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e3\/4 in. Stainless Steel Y Spring Check Valve\u003c\/strong\u003e (#949484) is a compact Y-pattern (wye) spring check valve with a stainless steel body engineered for chemical metering pump outlet service.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpring Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCheck Type\u003c\/td\u003e\n\u003ctd\u003eY-pattern (wye) spring\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e949484\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eStainless steel body\u003c\/li\u003e\n  \u003cli\u003eY-pattern (wye) spring design\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded — closes automatically on flow reversal\u003c\/li\u003e\n  \u003cli\u003eStainless spring internals\u003c\/li\u003e\n  \u003cli\u003eCompact body for tight installation spaces\u003c\/li\u003e\n  \u003cli\u003eFits directly onto chemical metering pump outlet ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003eStandard at chemical metering pump discharge ports and injection check positions.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types: Swing, Spring, Wafer, Ball\u003c\/a\u003e — Compare check valve styles\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/stainless-steel-check-valves\"\u003eShop Stainless Check Valves\u003c\/a\u003e — Full SS check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48629263171799,"sku":"949484","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949484_0a929413-e5de-4354-aabd-d99b821e7aa1.jpg?v=1778884495"},{"product_id":"1-12-barrel-spring-check-valve-949447","title":"1-1\/2 in. Barrel Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/2 in. Barrel Spring Check Valve\u003c\/strong\u003e (Midland part #949447) is a two-piece barrel-type spring check valve with a cast stainless steel body and female NPT threads on both ends.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949447\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eCF8M\/CF8 316 stainless steel (Midland)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisc\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrim (Midland)\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel bolt, 316\/304 stainless steel spring, CF8M\/CF8 stainless steel cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT), thread size 1-1\/2 - 11-1\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure rating\u003c\/td\u003e\n\u003ctd\u003e300 psi WOG (Midland product page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet-to-outlet length\u003c\/td\u003e\n\u003ctd\u003e3.46 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949447. Ask us for any value not shown, including the temperature rating for your service; Midland's catalog and product data state it differently, and we confirm it for the exact model.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48629263204567,"sku":"949447","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949447_c32b6053-2f69-4507-b490-05ba85fb0710.jpg?v=1778884496"},{"product_id":"dual-check-vavle-38-mflx38-mfl-304ss-34845","title":"Dual Check Valve, 3\/8 in. Male Flare x 3\/8 in. Male Flare, 304 Stainless Steel","description":"\u003cp\u003eThe \u003cstrong\u003eDual Check Valve, 3\/8 in. Male Flare x 3\/8 in. Male Flare, 304 Stainless Steel\u003c\/strong\u003e (#34845) is a dual 304 stainless steel check valve with flare connections, providing two-stage backflow protection in a single body.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpring Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCheck Type\u003c\/td\u003e\n\u003ctd\u003eDual poppet \/ spring\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFlare\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e34845\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e304 Stainless Steel body\u003c\/li\u003e\n  \u003cli\u003eDual poppet \/ spring design\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded — closes automatically on flow reversal\u003c\/li\u003e\n  \u003cli\u003eStainless spring internals\u003c\/li\u003e\n  \u003cli\u003eCompact body for tight installation spaces\u003c\/li\u003e\n  \u003cli\u003eFlare connections — no threading required, leak-tight mechanical seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types: Swing, Spring, Wafer, Ball\u003c\/a\u003e — Compare check valve styles\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/stainless-steel-check-valves\"\u003eShop Stainless Check Valves\u003c\/a\u003e — Full SS check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48646774915287,"sku":"34845","price":3.84,"currency_code":"USD","in_stock":true}]},{"product_id":"single-check-valve-14-mflx14-mfl-304ss-34844","title":"Single Check Valve, 1\/4 in. Male Flare x 1\/4 in. Male Flare, 304 Stainless Steel","description":"\u003cp\u003eThe \u003cstrong\u003eSingle Check Valve, 1\/4 in. Male Flare x 1\/4 in. Male Flare, 304 Stainless Steel\u003c\/strong\u003e (#34844) is a 304 stainless steel single check valve with flare connections. Spring-loaded poppet design closes instantly on flow reversal.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpring Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCheck Type\u003c\/td\u003e\n\u003ctd\u003eSingle spring poppet\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFlare\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e34844\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e304 Stainless Steel body\u003c\/li\u003e\n  \u003cli\u003eSingle spring poppet design\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded — closes automatically on flow reversal\u003c\/li\u003e\n  \u003cli\u003eStainless spring internals\u003c\/li\u003e\n  \u003cli\u003eCompact body for tight installation spaces\u003c\/li\u003e\n  \u003cli\u003eMale flare connections on both ends (MFL x MFL)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types: Swing, Spring, Wafer, Ball\u003c\/a\u003e — Compare check valve styles\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/stainless-steel-check-valves\"\u003eShop Stainless Check Valves\u003c\/a\u003e — Full SS check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48646775013591,"sku":"34844","price":7.99,"currency_code":"USD","in_stock":true}]},{"product_id":"34-ss-check-valve-949431","title":"3\/4 in. Stainless Steel Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e3\/4 in. Stainless Steel Check Valve\u003c\/strong\u003e (Midland part #949431) is an inline check valve with a 304 stainless steel body, female NPT threads on both ends and a fluoroelastomer seal.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949431\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003eFluoroelastomer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT), thread size 3\/4 - 14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet-to-outlet length\u003c\/td\u003e\n\u003ctd\u003e2.72 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead content\u003c\/td\u003e\n\u003ctd\u003eMidland lists this model as \"Lead-Free\" (manufacturer designation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949431. Midland does not list a pressure or temperature rating on that page; ask us and we will confirm them with Midland before you order.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003ch2\u003eCross-References\u003c\/h2\u003e\u003cp\u003eCVS75, RL01-108SB\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48646775079127,"sku":"949431","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949431.jpg?v=1779367473"},{"product_id":"38-ss-y-spring-check-valve-949482","title":"3\/8 in. Stainless Steel Y Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e3\/8 in. Stainless Steel Y Spring Check Valve\u003c\/strong\u003e (#949482) is a compact Y-pattern (wye) spring check valve with a stainless steel body engineered for chemical metering pump outlet service.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpring Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCheck Type\u003c\/td\u003e\n\u003ctd\u003eY-pattern (wye) spring\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e949482\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eStainless steel body\u003c\/li\u003e\n  \u003cli\u003eY-pattern (wye) spring design\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded — closes automatically on flow reversal\u003c\/li\u003e\n  \u003cli\u003eStainless spring internals\u003c\/li\u003e\n  \u003cli\u003eCompact body for tight installation spaces\u003c\/li\u003e\n  \u003cli\u003eFits directly onto chemical metering pump outlet ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003eStandard at chemical metering pump discharge ports and injection check positions.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types: Swing, Spring, Wafer, Ball\u003c\/a\u003e — Compare check valve styles\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/stainless-steel-check-valves\"\u003eShop Stainless Check Valves\u003c\/a\u003e — Full SS check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48646775177431,"sku":"949482","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949482.jpg?v=1779367474"},{"product_id":"12-ss-y-spring-check-valve-949483","title":"1\/2 in. Stainless Steel Y Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1\/2 in. Stainless Steel Y Spring Check Valve\u003c\/strong\u003e (#949483) is a compact Y-pattern (wye) spring check valve with a stainless steel body engineered for chemical metering pump outlet service.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpring Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCheck Type\u003c\/td\u003e\n\u003ctd\u003eY-pattern (wye) spring\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e949483\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eStainless steel body\u003c\/li\u003e\n  \u003cli\u003eY-pattern (wye) spring design\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded — closes automatically on flow reversal\u003c\/li\u003e\n  \u003cli\u003eStainless spring internals\u003c\/li\u003e\n  \u003cli\u003eCompact body for tight installation spaces\u003c\/li\u003e\n  \u003cli\u003eFits directly onto chemical metering pump outlet ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003eStandard at chemical metering pump discharge ports and injection check positions.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types: Swing, Spring, Wafer, Ball\u003c\/a\u003e — Compare check valve styles\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/stainless-steel-check-valves\"\u003eShop Stainless Check Valves\u003c\/a\u003e — Full SS check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48646775210199,"sku":"949483","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949483.jpg?v=1779367476"},{"product_id":"14-ss-y-spring-check-valve-949481","title":"1\/4 in. Stainless Steel Y Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1\/4 in. Stainless Steel Y Spring Check Valve\u003c\/strong\u003e (#949481) is a compact Y-pattern (wye) spring check valve with a stainless steel body engineered for chemical metering pump outlet service.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpring Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCheck Type\u003c\/td\u003e\n\u003ctd\u003eY-pattern (wye) spring\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e949481\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eStainless steel body\u003c\/li\u003e\n  \u003cli\u003eY-pattern (wye) spring design\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded — closes automatically on flow reversal\u003c\/li\u003e\n  \u003cli\u003eStainless spring internals\u003c\/li\u003e\n  \u003cli\u003eCompact body for tight installation spaces\u003c\/li\u003e\n  \u003cli\u003eFits directly onto chemical metering pump outlet ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003eStandard at chemical metering pump discharge ports and injection check positions.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types: Swing, Spring, Wafer, Ball\u003c\/a\u003e — Compare check valve styles\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/stainless-steel-check-valves\"\u003eShop Stainless Check Valves\u003c\/a\u003e — Full SS check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48646775275735,"sku":"949481","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949481.jpg?v=1779367478"},{"product_id":"14-barrel-spring-check-valve-949441","title":"1\/4 in. Stainless Steel Barrel Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1\/4 in. Stainless Steel Barrel Spring Check Valve\u003c\/strong\u003e (Midland part #949441) is a two-piece barrel-type spring check valve with a cast stainless steel body and female NPT threads on both ends.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949441\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eCF8M\/CF8 316 stainless steel (Midland)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisc\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrim (Midland)\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel bolt, 316\/304 stainless steel spring, CF8M\/CF8 stainless steel cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT), thread size 1\/4 - 18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure rating\u003c\/td\u003e\n\u003ctd\u003e300 psi WOG (Midland product page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet-to-outlet length\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949441. Ask us for any value not shown, including the temperature rating for your service; Midland's catalog and product data state it differently, and we confirm it for the exact model.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48646775308503,"sku":"949441","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949441.jpg?v=1779367479"},{"product_id":"34-barrel-spring-check-valve-949444","title":"3\/4 in. Stainless Steel Barrel Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e3\/4 in. Stainless Steel Barrel Spring Check Valve\u003c\/strong\u003e (Midland part #949444) is a two-piece barrel-type spring check valve with a cast stainless steel body and female NPT threads on both ends.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949444\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eCF8M\/CF8 316 stainless steel (Midland)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisc\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrim (Midland)\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel bolt, 316\/304 stainless steel spring, CF8M\/CF8 stainless steel cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT), thread size 3\/4 - 14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure rating\u003c\/td\u003e\n\u003ctd\u003e300 psi WOG (Midland product page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet-to-outlet length\u003c\/td\u003e\n\u003ctd\u003e2.44 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949444. Ask us for any value not shown, including the temperature rating for your service; Midland's catalog and product data state it differently, and we confirm it for the exact model.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default Title","offer_id":48646775374039,"sku":"949444","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949444.jpg?v=1779367481"},{"product_id":"1-2-in-316-stainless-steel-swing-check-valve-threaded-npt-949353","title":"1\/2 in. 316 Stainless Steel Swing Check Valve, Threaded (NPT)","description":"\u003cp\u003eThe \u003cstrong\u003e1\/2 in. 316 Stainless Steel Swing Check Valve (#949353)\u003c\/strong\u003e is a 316 stainless steel swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow). Built for reliable, low-maintenance operation.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949353\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003e316 stainless steel (CF8M) body and disc\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eUsed to prevent reverse flow in commercial and industrial piping. For chemical, food-grade or high-purity service, ask us — we confirm material suitability with the manufacturer before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e\u003cdiv class=\"afs-guide-box\"\u003e\u003cp\u003eSelection reference: \u003ca href=\"\/pages\/swing-check-valve-guide\"\u003eswing check valve guide\u003c\/a\u003e — compare materials, sizes, and installation considerations.\u003c\/p\u003e\u003c\/div\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740414357719,"sku":"949353","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949353.jpg?v=1780648795"},{"product_id":"1-in-316-stainless-steel-swing-check-valve-threaded-npt-949355","title":"1 in. 316 Stainless Steel Swing Check Valve, Threaded (NPT)","description":"\u003cp\u003eThe \u003cstrong\u003e1 in. 316 Stainless Steel Swing Check Valve (#949355)\u003c\/strong\u003e is a 316 stainless steel swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow). Built for reliable, low-maintenance operation.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949355\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003e316 stainless steel (CF8M) body and disc\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eUsed to prevent reverse flow in commercial and industrial piping. For chemical, food-grade or high-purity service, ask us — we confirm material suitability with the manufacturer before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e\u003cdiv class=\"afs-guide-box\"\u003e\u003cp\u003eSelection reference: \u003ca href=\"\/pages\/swing-check-valve-guide\"\u003eswing check valve guide\u003c\/a\u003e — compare materials, sizes, and installation considerations.\u003c\/p\u003e\u003c\/div\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740414390487,"sku":"949355","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949355.jpg?v=1780648798"},{"product_id":"1-1-4-in-316-stainless-steel-swing-check-valve-threaded-npt-949356","title":"1-1\/4 in. 316 Stainless Steel Swing Check Valve, Threaded (NPT)","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/4 in. 316 Stainless Steel Swing Check Valve (#949356)\u003c\/strong\u003e is a 316 stainless steel swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow). Built for reliable, low-maintenance operation.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949356\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003e316 stainless steel (CF8M) body and disc\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eUsed to prevent reverse flow in commercial and industrial piping. For chemical, food-grade or high-purity service, ask us — we confirm material suitability with the manufacturer before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e\u003cdiv class=\"afs-guide-box\"\u003e\u003cp\u003eSelection reference: \u003ca href=\"\/pages\/swing-check-valve-guide\"\u003eswing check valve guide\u003c\/a\u003e — compare materials, sizes, and installation considerations.\u003c\/p\u003e\u003c\/div\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740414423255,"sku":"949356","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949356.jpg?v=1780648800"},{"product_id":"2-in-316-stainless-steel-swing-check-valve-threaded-npt-949358","title":"2 in. 316 Stainless Steel Swing Check Valve, Threaded (NPT)","description":"\u003cp\u003eThe \u003cstrong\u003e2 in. 316 Stainless Steel Swing Check Valve (#949358)\u003c\/strong\u003e is a 316 stainless steel swing check valve that allows flow in one direction and automatically prevents reverse flow (backflow). Built for reliable, low-maintenance operation.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949358\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSwing Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eThreaded (NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAutomatic backflow prevention — opens with forward flow, closes on reverse\u003c\/li\u003e\n\u003cli\u003e316 stainless steel (CF8M) body and disc\u003c\/li\u003e\n\u003cli\u003eThreaded (NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eUsed to prevent reverse flow in commercial and industrial piping. For chemical, food-grade or high-purity service, ask us — we confirm material suitability with the manufacturer before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e\u003cdiv class=\"afs-guide-box\"\u003e\u003cp\u003eSelection reference: \u003ca href=\"\/pages\/swing-check-valve-guide\"\u003eswing check valve guide\u003c\/a\u003e — compare materials, sizes, and installation considerations.\u003c\/p\u003e\u003c\/div\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740414750935,"sku":"949358","price":146.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949358.jpg?v=1780648809"},{"product_id":"3-8-in-stainless-steel-spring-check-valve-fpt-x-fpt-949452","title":"3\/8 in. Stainless Steel Spring Check Valve, FPT x FPT","description":"\u003cp\u003eThe \u003cstrong\u003e3\/8 in. Stainless Steel Spring Check Valve, FPT x FPT (#949452)\u003c\/strong\u003e is a stainless steel spring check valve with a spring-loaded poppet that closes to prevent reverse flow.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949452\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSpring Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpring-loaded poppet — closes on flow reversal\u003c\/li\u003e\n\u003cli\u003e316 stainless steel body\u003c\/li\u003e\n\u003cli\u003eFPT x FPT (female NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater, oil and gas service, pump and compressor lines, and general industrial systems requiring backflow prevention. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740414783703,"sku":"949452","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949452.jpg?v=1780648811"},{"product_id":"1-2-in-stainless-steel-spring-check-valve-fpt-x-fpt-949453","title":"1\/2 in. Stainless Steel Spring Check Valve, FPT x FPT","description":"\u003cp\u003eThe \u003cstrong\u003e1\/2 in. Stainless Steel Spring Check Valve, FPT x FPT (#949453)\u003c\/strong\u003e is a stainless steel spring check valve with a spring-loaded poppet that closes to prevent reverse flow.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949453\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSpring Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpring-loaded poppet — closes on flow reversal\u003c\/li\u003e\n\u003cli\u003e316 stainless steel body\u003c\/li\u003e\n\u003cli\u003eFPT x FPT (female NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater, oil and gas service, pump and compressor lines, and general industrial systems requiring backflow prevention. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740414816471,"sku":"949453","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949453.jpg?v=1780648812"},{"product_id":"3-4-in-stainless-steel-spring-check-valve-fpt-x-fpt-949454","title":"3\/4 in. Stainless Steel Spring Check Valve, FPT x FPT","description":"\u003cp\u003eThe \u003cstrong\u003e3\/4 in. Stainless Steel Spring Check Valve, FPT x FPT (#949454)\u003c\/strong\u003e is a stainless steel spring check valve with a spring-loaded poppet that closes to prevent reverse flow.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949454\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSpring Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpring-loaded poppet — closes on flow reversal\u003c\/li\u003e\n\u003cli\u003e316 stainless steel body\u003c\/li\u003e\n\u003cli\u003eFPT x FPT (female NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater, oil and gas service, pump and compressor lines, and general industrial systems requiring backflow prevention. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740414849239,"sku":"949454","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949454.jpg?v=1780648814"},{"product_id":"1-in-stainless-steel-spring-check-valve-fpt-x-fpt-949455","title":"1 in. Stainless Steel Spring Check Valve, FPT x FPT","description":"\u003cp\u003eThe \u003cstrong\u003e1 in. Stainless Steel Spring Check Valve, FPT x FPT (#949455)\u003c\/strong\u003e is a stainless steel spring check valve with a spring-loaded poppet that closes to prevent reverse flow.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949455\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSpring Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpring-loaded poppet — closes on flow reversal\u003c\/li\u003e\n\u003cli\u003e316 stainless steel body\u003c\/li\u003e\n\u003cli\u003eFPT x FPT (female NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater, oil and gas service, pump and compressor lines, and general industrial systems requiring backflow prevention. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740416127191,"sku":"949455","price":80.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949455.jpg?v=1780648822"},{"product_id":"1-1-4-in-stainless-steel-barrel-spring-check-valve-949446","title":"1-1\/4 in. Stainless Steel Barrel Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/4 in. Stainless Steel Barrel Spring Check Valve\u003c\/strong\u003e (Midland part #949446) is a two-piece barrel-type spring check valve with a cast stainless steel body and female NPT threads on both ends.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949446\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eCF8M\/CF8 316 stainless steel (Midland)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisc\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrim (Midland)\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel bolt, 316\/304 stainless steel spring, CF8M\/CF8 stainless steel cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT), thread size 1-1\/4 - 11-1\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure rating\u003c\/td\u003e\n\u003ctd\u003e300 psi WOG (Midland product page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet-to-outlet length\u003c\/td\u003e\n\u003ctd\u003e3.23 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949446. Ask us for any value not shown, including the temperature rating for your service; Midland's catalog and product data state it differently, and we confirm it for the exact model.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740970201303,"sku":"949446","price":78.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949446.jpg?v=1780661371"},{"product_id":"304-stainless-steel-check-ball-34840","title":"304 Stainless Steel Check Ball","description":"\u003cp\u003eThe \u003cstrong\u003e304 Stainless Steel Check Ball (#34840)\u003c\/strong\u003e is a 304 stainless steel replacement check ball for Midland check valves — a genuine OEM repair component.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e34840\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eCheck Ball\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Midland Industries replacement component\u003c\/li\u003e\n\u003cli\u003e304 stainless steel\u003c\/li\u003e\n\u003cli\u003eRestores original check-valve performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eMaintenance and repair of Midland stainless check valves in water, HVAC, and industrial systems.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740970299607,"sku":"34840","price":7.99,"currency_code":"USD","in_stock":true}]},{"product_id":"304-stainless-steel-check-valve-inlet-1-4-in-male-flare-34843","title":"304 Stainless Steel Check Valve Inlet, 1\/4 in. Male Flare","description":"\u003cp\u003eThe \u003cstrong\u003e304 Stainless Steel Check Valve Inlet (#34843)\u003c\/strong\u003e is a 1\/4 in. male-flare inlet fitting for Midland stainless check valves — a genuine OEM repair component.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e34843\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eCheck Valve Inlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003e1\/4 in. Male Flare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGenuine Midland Industries replacement component\u003c\/li\u003e\n\u003cli\u003e304 stainless steel — corrosion-resistant\u003c\/li\u003e\n\u003cli\u003e1\/4 in. male flare inlet\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eMaintenance and repair of Midland stainless check valves in water, HVAC, and industrial systems.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740970496215,"sku":"34843","price":3.99,"currency_code":"USD","in_stock":true}]},{"product_id":"1-in-stainless-steel-barrel-spring-check-valve-949445","title":"1 in. Stainless Steel Barrel Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1 in. Stainless Steel Barrel Spring Check Valve\u003c\/strong\u003e (Midland part #949445) is a two-piece barrel-type spring check valve with a cast stainless steel body and female NPT threads on both ends.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949445\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eCF8M\/CF8 316 stainless steel (Midland)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisc\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrim (Midland)\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel bolt, 316\/304 stainless steel spring, CF8M\/CF8 stainless steel cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT), thread size 1 - 11-1\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure rating\u003c\/td\u003e\n\u003ctd\u003e300 psi WOG (Midland product page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet-to-outlet length\u003c\/td\u003e\n\u003ctd\u003e2.95 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949445. Ask us for any value not shown, including the temperature rating for your service; Midland's catalog and product data state it differently, and we confirm it for the exact model.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740980195543,"sku":"949445","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949445.jpg?v=1780662123"},{"product_id":"2-in-stainless-steel-barrel-spring-check-valve-949448","title":"2 in. Stainless Steel Barrel Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e2 in. Stainless Steel Barrel Spring Check Valve\u003c\/strong\u003e (Midland part #949448) is a two-piece barrel-type spring check valve with a cast stainless steel body and female NPT threads on both ends.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949448\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eCF8M\/CF8 316 stainless steel (Midland)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisc\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eNBR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrim (Midland)\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel bolt, 316\/304 stainless steel spring, CF8M\/CF8 stainless steel cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT), thread size 2 - 11-1\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure rating\u003c\/td\u003e\n\u003ctd\u003e300 psi WOG (Midland product page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet-to-outlet length\u003c\/td\u003e\n\u003ctd\u003e3.94 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949448. Ask us for any value not shown, including the temperature rating for your service; Midland's catalog and product data state it differently, and we confirm it for the exact model.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740980228311,"sku":"949448","price":170.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949448.jpg?v=1780662125"},{"product_id":"1-in-stainless-steel-check-valve-949432","title":"1 in. Stainless Steel Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1 in. Stainless Steel Check Valve\u003c\/strong\u003e (Midland part #949432) is an inline check valve with a 304 stainless steel body, female NPT threads on both ends and a fluoroelastomer seal.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949432\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003eFluoroelastomer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT), thread size 1 - 11-1\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet-to-outlet length\u003c\/td\u003e\n\u003ctd\u003e3.23 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead content\u003c\/td\u003e\n\u003ctd\u003eMidland lists this model as \"Lead-Free\" (manufacturer designation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949432. Midland does not list a pressure or temperature rating on that page; ask us and we will confirm them with Midland before you order.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003ch2\u003eCross-References\u003c\/h2\u003e\u003cp\u003eCVS100, RL01-108SC\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740980261079,"sku":"949432","price":86.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949432.jpg?v=1780662127"},{"product_id":"2-in-stainless-steel-check-valve-949435","title":"2 in. Stainless Steel Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e2 in. Stainless Steel Check Valve\u003c\/strong\u003e (Midland part #949435) is an inline check valve with a 304 stainless steel body, female NPT threads on both ends and a fluoroelastomer seal.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949435\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeal\u003c\/td\u003e\n\u003ctd\u003eFluoroelastomer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead content\u003c\/td\u003e\n\u003ctd\u003eMidland lists this model as \"Lead-Free\" (manufacturer designation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eValues are from Midland's product page for 949435. Midland does not list a pressure or temperature rating on that page; ask us and we will confirm them with Midland before you order.\u003c\/p\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eInstall with the flow arrow pointing downstream, and follow the manufacturer's installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e or send us your existing part number to match.\u003c\/p\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740980293847,"sku":"949435","price":160.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949431_92adcfab-d7a6-4893-bad4-db2960d34352.jpg?v=1781565485"},{"product_id":"1-4-in-stainless-steel-spring-check-valve-mpt-x-fpt-949471","title":"1\/4 in. Stainless Steel Spring Check Valve, MPT x FPT","description":"\u003cp\u003eThe \u003cstrong\u003e1\/4 in. Stainless Steel Spring Check Valve, MPT x FPT (#949471)\u003c\/strong\u003e is a stainless steel spring check valve with a spring-loaded poppet that closes to prevent reverse flow. Its male x female threaded ends install inline.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949471\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSpring Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eMPT x FPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpring-loaded poppet — closes on flow reversal\u003c\/li\u003e\n\u003cli\u003e316 stainless steel body\u003c\/li\u003e\n\u003cli\u003eMPT x FPT (male x female NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater, oil and gas service, pump and compressor lines, and general industrial systems requiring backflow prevention. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740980326615,"sku":"949471","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949471.jpg?v=1780662133"},{"product_id":"1-4-in-316-stainless-steel-inline-check-valve-949401","title":"1\/4 in. 316 Stainless Steel Inline Check Valve","description":"\u003cp\u003eThe 1\/4 in. 316 stainless steel inline check valve (part \u003cstrong\u003e949401\u003c\/strong\u003e) delivers spring-loaded, bubble-tight backflow protection in a 316 stainless steel body. ASTM A351-CF8M investment-cast body, soft PTFE seat, and a dual-guided stem and disc that seats fast at just 1\/2 psi cracking pressure. Rated 800 psi WOG and 125 psi WSP saturated steam. Female NPT both ends. Made in Italy.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949401\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eInline check valve (spring-loaded poppet), 316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT × Female NPT, ANSI B1.20.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e800 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteam Rating\u003c\/td\u003e\n\u003ctd\u003e125 psi WSP saturated steam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eAsk us — Midland's published figures differ; we confirm the rating for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCracking Pressure\u003c\/td\u003e\n\u003ctd\u003e1\/2 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS), investment cast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eSoft PTFE — bubble-tight shutoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd-to-End Length\u003c\/td\u003e\n\u003ctd\u003e2.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eMaterials of Construction\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody, Center Guide, Disc \u0026amp; End Cap\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring\u003c\/td\u003e\n\u003ctd\u003e316 SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat \u0026amp; Gasket\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003ePerformance \u0026amp; Testing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLow 1\/2 psi cracking pressure — opens with minimal upstream pressure\u003c\/li\u003e\n\u003cli\u003eSpring-loaded for fast seating action; perfect seating at both high and low pressure\u003c\/li\u003e\n\u003cli\u003eDual-guided stem and disc\u003c\/li\u003e\n\u003cli\u003eHigh-capacity flow profile designed to minimize head loss\u003c\/li\u003e\n\u003cli\u003e316 stainless (ASTM A351-CF8M) construction\u003c\/li\u003e\n\u003cli\u003eInstall with flow in the direction of the body arrow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"series-sizes\"\u003e\n\u003ch3\u003eOther Sizes in This Series\u003c\/h3\u003e\n\u003cp\u003e316 SS Inline Check Valve, 800 WOG, Female NPT (1\/4\"–2\"). Jump to another size or add it straight to your cart:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePart #\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1\/4 in. (this page)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e949401\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-8-in-316-stainless-steel-inline-check-valve-949402\" style=\"color:#FE8C03\"\u003e3\/8 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949402\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-2-in-316-stainless-steel-inline-check-valve-949403\" style=\"color:#FE8C03\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949403\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-316-stainless-steel-inline-check-valve-949404\" style=\"color:#FE8C03\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949404\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-316-stainless-steel-inline-check-valve-949405\" style=\"color:#FE8C03\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949405\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-316-stainless-steel-inline-check-valve-949406\" style=\"color:#FE8C03\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949406\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-316-stainless-steel-inline-check-valve-949407\" style=\"color:#FE8C03\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949407\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-316-stainless-steel-inline-check-valve-949408\" style=\"color:#FE8C03\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949408\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cp\u003eBackflow prevention on water, oil and gas lines and saturated-steam service within the 125 psi WSP rating. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order. The 1\/2 psi cracking pressure suits low-head gravity and recirculation loops.\u003c\/p\u003e\n\u003ch2\u003eCross-References \u0026amp; Interchange\u003c\/h2\u003e\u003cp\u003eReplacing another brand's 1\/4 in. stainless inline check valve? Match nominal size, end connections, cracking pressure, and pressure rating for a direct fit — or send us your part number and we will confirm the interchange. Water or air service on a budget? The \u003ca style=\"color:#FE8C03\" href=\"\/products\/14-brass-in-line-check-valve-944401\"\u003e1\/4 in. brass inline check valve (944401)\u003c\/a\u003e costs less (not lead-free).\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/valve-pressure-temperature-ratings-chart\"\u003eValve Pressure \u0026amp; Temperature Ratings Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740980621527,"sku":"949401","price":135.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949401.jpg?v=1780662220"},{"product_id":"3-8-in-316-stainless-steel-inline-check-valve-949402","title":"3\/8 in. 316 Stainless Steel Inline Check Valve","description":"\u003cp\u003eThe 3\/8 in. 316 stainless steel inline check valve (part \u003cstrong\u003e949402\u003c\/strong\u003e) delivers spring-loaded, bubble-tight backflow protection in a 316 stainless steel body. ASTM A351-CF8M investment-cast body, soft PTFE seat, and a dual-guided stem and disc that seats fast at just 1\/2 psi cracking pressure. Rated 800 psi WOG and 125 psi WSP saturated steam. Female NPT both ends. Made in Italy.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949402\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eInline check valve (spring-loaded poppet), 316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT × Female NPT, ANSI B1.20.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e800 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteam Rating\u003c\/td\u003e\n\u003ctd\u003e125 psi WSP saturated steam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eAsk us — Midland's published figures differ; we confirm the rating for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCracking Pressure\u003c\/td\u003e\n\u003ctd\u003e1\/2 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS), investment cast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eSoft PTFE — bubble-tight shutoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd-to-End Length\u003c\/td\u003e\n\u003ctd\u003e2.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eMaterials of Construction\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody, Center Guide, Disc \u0026amp; End Cap\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring\u003c\/td\u003e\n\u003ctd\u003e316 SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat \u0026amp; Gasket\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003ePerformance \u0026amp; Testing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLow 1\/2 psi cracking pressure — opens with minimal upstream pressure\u003c\/li\u003e\n\u003cli\u003eSpring-loaded for fast seating action; perfect seating at both high and low pressure\u003c\/li\u003e\n\u003cli\u003eDual-guided stem and disc\u003c\/li\u003e\n\u003cli\u003eHigh-capacity flow profile designed to minimize head loss\u003c\/li\u003e\n\u003cli\u003e316 stainless (ASTM A351-CF8M) construction\u003c\/li\u003e\n\u003cli\u003eInstall with flow in the direction of the body arrow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"series-sizes\"\u003e\n\u003ch3\u003eOther Sizes in This Series\u003c\/h3\u003e\n\u003cp\u003e316 SS Inline Check Valve, 800 WOG, Female NPT (1\/4\"–2\"). Jump to another size or add it straight to your cart:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePart #\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-4-in-316-stainless-steel-inline-check-valve-949401\" style=\"color:#FE8C03\"\u003e1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949401\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e3\/8 in. (this page)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e949402\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-2-in-316-stainless-steel-inline-check-valve-949403\" style=\"color:#FE8C03\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949403\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-316-stainless-steel-inline-check-valve-949404\" style=\"color:#FE8C03\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949404\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-316-stainless-steel-inline-check-valve-949405\" style=\"color:#FE8C03\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949405\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-316-stainless-steel-inline-check-valve-949406\" style=\"color:#FE8C03\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949406\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-316-stainless-steel-inline-check-valve-949407\" style=\"color:#FE8C03\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949407\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-316-stainless-steel-inline-check-valve-949408\" style=\"color:#FE8C03\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949408\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cp\u003eBackflow prevention on water, oil and gas lines and saturated-steam service within the 125 psi WSP rating. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order. The 1\/2 psi cracking pressure suits low-head gravity and recirculation loops.\u003c\/p\u003e\n\u003ch2\u003eCross-References \u0026amp; Interchange\u003c\/h2\u003e\u003cp\u003eReplacing another brand's 3\/8 in. stainless inline check valve? Match nominal size, end connections, cracking pressure, and pressure rating for a direct fit — or send us your part number and we will confirm the interchange. Water or air service on a budget? The \u003ca style=\"color:#FE8C03\" href=\"\/products\/3-8-in-brass-inline-check-valve-buna-n-944402\"\u003e3\/8 in. brass inline check valve (944402)\u003c\/a\u003e costs less (not lead-free).\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/valve-pressure-temperature-ratings-chart\"\u003eValve Pressure \u0026amp; Temperature Ratings Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740980687063,"sku":"949402","price":132.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949402.jpg?v=1780662223"},{"product_id":"3-4-in-316-stainless-steel-inline-check-valve-949404","title":"3\/4 in. 316 Stainless Steel Inline Check Valve","description":"\u003cp\u003eThe 3\/4 in. 316 stainless steel inline check valve (part \u003cstrong\u003e949404\u003c\/strong\u003e) delivers spring-loaded, bubble-tight backflow protection in a 316 stainless steel body. ASTM A351-CF8M investment-cast body, soft PTFE seat, and a dual-guided stem and disc that seats fast at just 1\/2 psi cracking pressure. Rated 800 psi WOG and 125 psi WSP saturated steam. Female NPT both ends. Made in Italy.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949404\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eInline check valve (spring-loaded poppet), 316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT × Female NPT, ANSI B1.20.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e800 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteam Rating\u003c\/td\u003e\n\u003ctd\u003e125 psi WSP saturated steam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eAsk us — Midland's published figures differ; we confirm the rating for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCracking Pressure\u003c\/td\u003e\n\u003ctd\u003e1\/2 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS), investment cast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eSoft PTFE — bubble-tight shutoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd-to-End Length\u003c\/td\u003e\n\u003ctd\u003e2.87\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eMaterials of Construction\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody, Center Guide, Disc \u0026amp; End Cap\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring\u003c\/td\u003e\n\u003ctd\u003e316 SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat \u0026amp; Gasket\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003ePerformance \u0026amp; Testing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLow 1\/2 psi cracking pressure — opens with minimal upstream pressure\u003c\/li\u003e\n\u003cli\u003eSpring-loaded for fast seating action; perfect seating at both high and low pressure\u003c\/li\u003e\n\u003cli\u003eDual-guided stem and disc\u003c\/li\u003e\n\u003cli\u003eHigh-capacity flow profile designed to minimize head loss\u003c\/li\u003e\n\u003cli\u003e316 stainless (ASTM A351-CF8M) construction\u003c\/li\u003e\n\u003cli\u003eInstall with flow in the direction of the body arrow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"series-sizes\"\u003e\n\u003ch3\u003eOther Sizes in This Series\u003c\/h3\u003e\n\u003cp\u003e316 SS Inline Check Valve, 800 WOG, Female NPT (1\/4\"–2\"). Jump to another size or add it straight to your cart:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePart #\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-4-in-316-stainless-steel-inline-check-valve-949401\" style=\"color:#FE8C03\"\u003e1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949401\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-8-in-316-stainless-steel-inline-check-valve-949402\" style=\"color:#FE8C03\"\u003e3\/8 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949402\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-2-in-316-stainless-steel-inline-check-valve-949403\" style=\"color:#FE8C03\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949403\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e3\/4 in. (this page)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e949404\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-316-stainless-steel-inline-check-valve-949405\" style=\"color:#FE8C03\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949405\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-316-stainless-steel-inline-check-valve-949406\" style=\"color:#FE8C03\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949406\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-316-stainless-steel-inline-check-valve-949407\" style=\"color:#FE8C03\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949407\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-316-stainless-steel-inline-check-valve-949408\" style=\"color:#FE8C03\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949408\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cp\u003eBackflow prevention on water, oil and gas lines and saturated-steam service within the 125 psi WSP rating. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order. The 1\/2 psi cracking pressure suits low-head gravity and recirculation loops.\u003c\/p\u003e\n\u003ch2\u003eCross-References \u0026amp; Interchange\u003c\/h2\u003e\u003cp\u003eReplacing another brand's 3\/4 in. stainless inline check valve? Match nominal size, end connections, cracking pressure, and pressure rating for a direct fit — or send us your part number and we will confirm the interchange. Water or air service on a budget? The \u003ca style=\"color:#FE8C03\" href=\"\/products\/3-4-in-brass-inline-check-valve-buna-n-944404\"\u003e3\/4 in. brass inline check valve (944404)\u003c\/a\u003e costs less (not lead-free).\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/valve-pressure-temperature-ratings-chart\"\u003eValve Pressure \u0026amp; Temperature Ratings Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740980752599,"sku":"949404","price":205.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949404.jpg?v=1780662229"},{"product_id":"1-2-in-316-stainless-steel-inline-check-valve-949403","title":"1\/2 in. 316 Stainless Steel Inline Check Valve","description":"\u003cp\u003eThe 1\/2 in. 316 stainless steel inline check valve (part \u003cstrong\u003e949403\u003c\/strong\u003e) delivers spring-loaded, bubble-tight backflow protection in a 316 stainless steel body. ASTM A351-CF8M investment-cast body, soft PTFE seat, and a dual-guided stem and disc that seats fast at just 1\/2 psi cracking pressure. Rated 800 psi WOG and 125 psi WSP saturated steam. Female NPT both ends. Made in Italy.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949403\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eInline check valve (spring-loaded poppet), 316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT × Female NPT, ANSI B1.20.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e800 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteam Rating\u003c\/td\u003e\n\u003ctd\u003e125 psi WSP saturated steam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eAsk us — Midland's published figures differ; we confirm the rating for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCracking Pressure\u003c\/td\u003e\n\u003ctd\u003e1\/2 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS), investment cast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eSoft PTFE — bubble-tight shutoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd-to-End Length\u003c\/td\u003e\n\u003ctd\u003e2.31\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eMaterials of Construction\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody, Center Guide, Disc \u0026amp; End Cap\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring\u003c\/td\u003e\n\u003ctd\u003e316 SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat \u0026amp; Gasket\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003ePerformance \u0026amp; Testing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLow 1\/2 psi cracking pressure — opens with minimal upstream pressure\u003c\/li\u003e\n\u003cli\u003eSpring-loaded for fast seating action; perfect seating at both high and low pressure\u003c\/li\u003e\n\u003cli\u003eDual-guided stem and disc\u003c\/li\u003e\n\u003cli\u003eHigh-capacity flow profile designed to minimize head loss\u003c\/li\u003e\n\u003cli\u003e316 stainless (ASTM A351-CF8M) construction\u003c\/li\u003e\n\u003cli\u003eInstall with flow in the direction of the body arrow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"series-sizes\"\u003e\n\u003ch3\u003eOther Sizes in This Series\u003c\/h3\u003e\n\u003cp\u003e316 SS Inline Check Valve, 800 WOG, Female NPT (1\/4\"–2\"). Jump to another size or add it straight to your cart:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePart #\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-4-in-316-stainless-steel-inline-check-valve-949401\" style=\"color:#FE8C03\"\u003e1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949401\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-8-in-316-stainless-steel-inline-check-valve-949402\" style=\"color:#FE8C03\"\u003e3\/8 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949402\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1\/2 in. (this page)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e949403\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-316-stainless-steel-inline-check-valve-949404\" style=\"color:#FE8C03\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949404\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-316-stainless-steel-inline-check-valve-949405\" style=\"color:#FE8C03\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949405\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-316-stainless-steel-inline-check-valve-949406\" style=\"color:#FE8C03\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949406\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-316-stainless-steel-inline-check-valve-949407\" style=\"color:#FE8C03\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949407\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-316-stainless-steel-inline-check-valve-949408\" style=\"color:#FE8C03\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949408\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cp\u003eBackflow prevention on water, oil and gas lines and saturated-steam service within the 125 psi WSP rating. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order. The 1\/2 psi cracking pressure suits low-head gravity and recirculation loops.\u003c\/p\u003e\n\u003ch2\u003eCross-References \u0026amp; Interchange\u003c\/h2\u003e\u003cp\u003eReplacing another brand's 1\/2 in. stainless inline check valve? Match nominal size, end connections, cracking pressure, and pressure rating for a direct fit — or send us your part number and we will confirm the interchange. Water or air service on a budget? The \u003ca style=\"color:#FE8C03\" href=\"\/products\/12-brass-in-line-check-valve-nbr-944403\"\u003e1\/2 in. brass inline check valve (944403)\u003c\/a\u003e costs less (not lead-free).\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/valve-pressure-temperature-ratings-chart\"\u003eValve Pressure \u0026amp; Temperature Ratings Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740990222551,"sku":"949403","price":133.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949403.jpg?v=1780662533"},{"product_id":"1-in-316-stainless-steel-inline-check-valve-949405","title":"1 in. 316 Stainless Steel Inline Check Valve","description":"\u003cp\u003eThe 1 in. 316 stainless steel inline check valve (part \u003cstrong\u003e949405\u003c\/strong\u003e) delivers spring-loaded, bubble-tight backflow protection in a 316 stainless steel body. ASTM A351-CF8M investment-cast body, soft PTFE seat, and a dual-guided stem and disc that seats fast at just 1\/2 psi cracking pressure. Rated 800 psi WOG and 125 psi WSP saturated steam. Female NPT both ends. Made in Italy.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949405\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eInline check valve (spring-loaded poppet), 316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT × Female NPT, ANSI B1.20.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e800 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteam Rating\u003c\/td\u003e\n\u003ctd\u003e125 psi WSP saturated steam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eAsk us — Midland's published figures differ; we confirm the rating for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCracking Pressure\u003c\/td\u003e\n\u003ctd\u003e1\/2 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS), investment cast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eSoft PTFE — bubble-tight shutoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd-to-End Length\u003c\/td\u003e\n\u003ctd\u003e3.50\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eMaterials of Construction\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody, Center Guide, Disc \u0026amp; End Cap\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring\u003c\/td\u003e\n\u003ctd\u003e316 SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat \u0026amp; Gasket\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003ePerformance \u0026amp; Testing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLow 1\/2 psi cracking pressure — opens with minimal upstream pressure\u003c\/li\u003e\n\u003cli\u003eSpring-loaded for fast seating action; perfect seating at both high and low pressure\u003c\/li\u003e\n\u003cli\u003eDual-guided stem and disc\u003c\/li\u003e\n\u003cli\u003eHigh-capacity flow profile designed to minimize head loss\u003c\/li\u003e\n\u003cli\u003e316 stainless (ASTM A351-CF8M) construction\u003c\/li\u003e\n\u003cli\u003eInstall with flow in the direction of the body arrow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"series-sizes\"\u003e\n\u003ch3\u003eOther Sizes in This Series\u003c\/h3\u003e\n\u003cp\u003e316 SS Inline Check Valve, 800 WOG, Female NPT (1\/4\"–2\"). Jump to another size or add it straight to your cart:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePart #\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-4-in-316-stainless-steel-inline-check-valve-949401\" style=\"color:#FE8C03\"\u003e1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949401\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-8-in-316-stainless-steel-inline-check-valve-949402\" style=\"color:#FE8C03\"\u003e3\/8 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949402\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-2-in-316-stainless-steel-inline-check-valve-949403\" style=\"color:#FE8C03\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949403\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-316-stainless-steel-inline-check-valve-949404\" style=\"color:#FE8C03\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949404\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1 in. (this page)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e949405\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-316-stainless-steel-inline-check-valve-949406\" style=\"color:#FE8C03\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949406\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-316-stainless-steel-inline-check-valve-949407\" style=\"color:#FE8C03\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949407\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-316-stainless-steel-inline-check-valve-949408\" style=\"color:#FE8C03\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949408\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cp\u003eBackflow prevention on water, oil and gas lines and saturated-steam service within the 125 psi WSP rating. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order. The 1\/2 psi cracking pressure suits low-head gravity and recirculation loops.\u003c\/p\u003e\n\u003ch2\u003eCross-References \u0026amp; Interchange\u003c\/h2\u003e\u003cp\u003eReplacing another brand's 1 in. stainless inline check valve? Match nominal size, end connections, cracking pressure, and pressure rating for a direct fit — or send us your part number and we will confirm the interchange. Water or air service on a budget? The \u003ca style=\"color:#FE8C03\" href=\"\/products\/1-in-brass-inline-check-valve-buna-n-944405\"\u003e1 in. brass inline check valve (944405)\u003c\/a\u003e costs less (not lead-free).\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/valve-pressure-temperature-ratings-chart\"\u003eValve Pressure \u0026amp; Temperature Ratings Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740990255319,"sku":"949405","price":227.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949405.jpg?v=1780662535"},{"product_id":"1-1-4-in-316-stainless-steel-inline-check-valve-949406","title":"1-1\/4 in. 316 Stainless Steel Inline Check Valve","description":"\u003cp\u003eThe 1-1\/4 in. 316 stainless steel inline check valve (part \u003cstrong\u003e949406\u003c\/strong\u003e) delivers spring-loaded, bubble-tight backflow protection in a 316 stainless steel body. ASTM A351-CF8M investment-cast body, soft PTFE seat, and a dual-guided stem and disc that seats fast at just 1\/2 psi cracking pressure. Rated 800 psi WOG and 125 psi WSP saturated steam. Female NPT both ends. Made in Italy.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949406\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eInline check valve (spring-loaded poppet), 316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT × Female NPT, ANSI B1.20.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e800 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteam Rating\u003c\/td\u003e\n\u003ctd\u003e125 psi WSP saturated steam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eAsk us — Midland's published figures differ; we confirm the rating for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCracking Pressure\u003c\/td\u003e\n\u003ctd\u003e1\/2 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS), investment cast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eSoft PTFE — bubble-tight shutoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd-to-End Length\u003c\/td\u003e\n\u003ctd\u003e4.18\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eMaterials of Construction\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody, Center Guide, Disc \u0026amp; End Cap\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring\u003c\/td\u003e\n\u003ctd\u003e316 SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat \u0026amp; Gasket\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003ePerformance \u0026amp; Testing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLow 1\/2 psi cracking pressure — opens with minimal upstream pressure\u003c\/li\u003e\n\u003cli\u003eSpring-loaded for fast seating action; perfect seating at both high and low pressure\u003c\/li\u003e\n\u003cli\u003eDual-guided stem and disc\u003c\/li\u003e\n\u003cli\u003eHigh-capacity flow profile designed to minimize head loss\u003c\/li\u003e\n\u003cli\u003e316 stainless (ASTM A351-CF8M) construction\u003c\/li\u003e\n\u003cli\u003eInstall with flow in the direction of the body arrow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"series-sizes\"\u003e\n\u003ch3\u003eOther Sizes in This Series\u003c\/h3\u003e\n\u003cp\u003e316 SS Inline Check Valve, 800 WOG, Female NPT (1\/4\"–2\"). Jump to another size or add it straight to your cart:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePart #\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-4-in-316-stainless-steel-inline-check-valve-949401\" style=\"color:#FE8C03\"\u003e1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949401\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-8-in-316-stainless-steel-inline-check-valve-949402\" style=\"color:#FE8C03\"\u003e3\/8 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949402\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-2-in-316-stainless-steel-inline-check-valve-949403\" style=\"color:#FE8C03\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949403\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-316-stainless-steel-inline-check-valve-949404\" style=\"color:#FE8C03\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949404\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-316-stainless-steel-inline-check-valve-949405\" style=\"color:#FE8C03\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949405\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1-1\/4 in. (this page)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e949406\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-316-stainless-steel-inline-check-valve-949407\" style=\"color:#FE8C03\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949407\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-316-stainless-steel-inline-check-valve-949408\" style=\"color:#FE8C03\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949408\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cp\u003eBackflow prevention on water, oil and gas lines and saturated-steam service within the 125 psi WSP rating. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order. The 1\/2 psi cracking pressure suits low-head gravity and recirculation loops.\u003c\/p\u003e\n\u003ch2\u003eCross-References \u0026amp; Interchange\u003c\/h2\u003e\u003cp\u003eReplacing another brand's 1-1\/4 in. stainless inline check valve? Match nominal size, end connections, cracking pressure, and pressure rating for a direct fit — or send us your part number and we will confirm the interchange. Water or air service on a budget? The \u003ca style=\"color:#FE8C03\" href=\"\/products\/1-14-brass-in-line-check-nbr-944406\"\u003e1-1\/4 in. brass inline check valve (944406)\u003c\/a\u003e costs less (not lead-free).\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/valve-pressure-temperature-ratings-chart\"\u003eValve Pressure \u0026amp; Temperature Ratings Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740990353623,"sku":"949406","price":407.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949406.jpg?v=1780662537"},{"product_id":"1-1-2-in-316-stainless-steel-inline-check-valve-949407","title":"1-1\/2 in. 316 Stainless Steel Inline Check Valve","description":"\u003cp\u003eThe 1-1\/2 in. 316 stainless steel inline check valve (part \u003cstrong\u003e949407\u003c\/strong\u003e) delivers spring-loaded, bubble-tight backflow protection in a 316 stainless steel body. ASTM A351-CF8M investment-cast body, soft PTFE seat, and a dual-guided stem and disc that seats fast at just 1\/2 psi cracking pressure. Rated 800 psi WOG and 125 psi WSP saturated steam. Female NPT both ends. Made in Italy.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949407\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eInline check valve (spring-loaded poppet), 316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT × Female NPT, ANSI B1.20.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e800 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteam Rating\u003c\/td\u003e\n\u003ctd\u003e125 psi WSP saturated steam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eAsk us — Midland's published figures differ; we confirm the rating for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCracking Pressure\u003c\/td\u003e\n\u003ctd\u003e1\/2 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS), investment cast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eSoft PTFE — bubble-tight shutoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd-to-End Length\u003c\/td\u003e\n\u003ctd\u003e4.93\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eMaterials of Construction\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody, Center Guide, Disc \u0026amp; End Cap\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring\u003c\/td\u003e\n\u003ctd\u003e316 SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat \u0026amp; Gasket\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003ePerformance \u0026amp; Testing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLow 1\/2 psi cracking pressure — opens with minimal upstream pressure\u003c\/li\u003e\n\u003cli\u003eSpring-loaded for fast seating action; perfect seating at both high and low pressure\u003c\/li\u003e\n\u003cli\u003eDual-guided stem and disc\u003c\/li\u003e\n\u003cli\u003eHigh-capacity flow profile designed to minimize head loss\u003c\/li\u003e\n\u003cli\u003e316 stainless (ASTM A351-CF8M) construction\u003c\/li\u003e\n\u003cli\u003eInstall with flow in the direction of the body arrow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"series-sizes\"\u003e\n\u003ch3\u003eOther Sizes in This Series\u003c\/h3\u003e\n\u003cp\u003e316 SS Inline Check Valve, 800 WOG, Female NPT (1\/4\"–2\"). Jump to another size or add it straight to your cart:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePart #\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-4-in-316-stainless-steel-inline-check-valve-949401\" style=\"color:#FE8C03\"\u003e1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949401\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-8-in-316-stainless-steel-inline-check-valve-949402\" style=\"color:#FE8C03\"\u003e3\/8 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949402\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-2-in-316-stainless-steel-inline-check-valve-949403\" style=\"color:#FE8C03\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949403\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-316-stainless-steel-inline-check-valve-949404\" style=\"color:#FE8C03\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949404\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-316-stainless-steel-inline-check-valve-949405\" style=\"color:#FE8C03\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949405\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-316-stainless-steel-inline-check-valve-949406\" style=\"color:#FE8C03\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949406\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1-1\/2 in. (this page)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e949407\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/2-in-316-stainless-steel-inline-check-valve-949408\" style=\"color:#FE8C03\"\u003e2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949408\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cp\u003eBackflow prevention on water, oil and gas lines and saturated-steam service within the 125 psi WSP rating. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order. The 1\/2 psi cracking pressure suits low-head gravity and recirculation loops.\u003c\/p\u003e\n\u003ch2\u003eCross-References \u0026amp; Interchange\u003c\/h2\u003e\u003cp\u003eReplacing another brand's 1-1\/2 in. stainless inline check valve? Match nominal size, end connections, cracking pressure, and pressure rating for a direct fit — or send us your part number and we will confirm the interchange. Water or air service on a budget? The \u003ca style=\"color:#FE8C03\" href=\"\/products\/1-1-2-in-brass-inline-check-valve-buna-n-944407\"\u003e1-1\/2 in. brass inline check valve (944407)\u003c\/a\u003e costs less (not lead-free).\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/valve-pressure-temperature-ratings-chart\"\u003eValve Pressure \u0026amp; Temperature Ratings Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740990386391,"sku":"949407","price":592.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949407.jpg?v=1780662538"},{"product_id":"2-in-316-stainless-steel-inline-check-valve-949408","title":"2 in. 316 Stainless Steel Inline Check Valve","description":"\u003cp\u003eThe 2 in. 316 stainless steel inline check valve (part \u003cstrong\u003e949408\u003c\/strong\u003e) delivers spring-loaded, bubble-tight backflow protection in a 316 stainless steel body. ASTM A351-CF8M investment-cast body, soft PTFE seat, and a dual-guided stem and disc that seats fast at just 1\/2 psi cracking pressure. Rated 800 psi WOG and 125 psi WSP saturated steam. Female NPT both ends. Made in Italy.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949408\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eInline check valve (spring-loaded poppet), 316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFemale NPT × Female NPT, ANSI B1.20.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e800 psi WOG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteam Rating\u003c\/td\u003e\n\u003ctd\u003e125 psi WSP saturated steam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003eAsk us — Midland's published figures differ; we confirm the rating for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCracking Pressure\u003c\/td\u003e\n\u003ctd\u003e1\/2 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS), investment cast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat\u003c\/td\u003e\n\u003ctd\u003eSoft PTFE — bubble-tight shutoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd-to-End Length\u003c\/td\u003e\n\u003ctd\u003e6.00\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eMaterials of Construction\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody, Center Guide, Disc \u0026amp; End Cap\u003c\/td\u003e\n\u003ctd\u003eASTM A351-CF8M (316 SS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring\u003c\/td\u003e\n\u003ctd\u003e316 SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat \u0026amp; Gasket\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003ePerformance \u0026amp; Testing\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLow 1\/2 psi cracking pressure — opens with minimal upstream pressure\u003c\/li\u003e\n\u003cli\u003eSpring-loaded for fast seating action; perfect seating at both high and low pressure\u003c\/li\u003e\n\u003cli\u003eDual-guided stem and disc\u003c\/li\u003e\n\u003cli\u003eHigh-capacity flow profile designed to minimize head loss\u003c\/li\u003e\n\u003cli\u003e316 stainless (ASTM A351-CF8M) construction\u003c\/li\u003e\n\u003cli\u003eInstall with flow in the direction of the body arrow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"series-sizes\"\u003e\n\u003ch3\u003eOther Sizes in This Series\u003c\/h3\u003e\n\u003cp\u003e316 SS Inline Check Valve, 800 WOG, Female NPT (1\/4\"–2\"). Jump to another size or add it straight to your cart:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePart #\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-4-in-316-stainless-steel-inline-check-valve-949401\" style=\"color:#FE8C03\"\u003e1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949401\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-8-in-316-stainless-steel-inline-check-valve-949402\" style=\"color:#FE8C03\"\u003e3\/8 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949402\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-2-in-316-stainless-steel-inline-check-valve-949403\" style=\"color:#FE8C03\"\u003e1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949403\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-316-stainless-steel-inline-check-valve-949404\" style=\"color:#FE8C03\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949404\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-in-316-stainless-steel-inline-check-valve-949405\" style=\"color:#FE8C03\"\u003e1 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949405\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-4-in-316-stainless-steel-inline-check-valve-949406\" style=\"color:#FE8C03\"\u003e1-1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949406\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/1-1-2-in-316-stainless-steel-inline-check-valve-949407\" style=\"color:#FE8C03\"\u003e1-1\/2 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e949407\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2 in. (this page)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e949408\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\u003cp\u003eBackflow prevention on water, oil and gas lines and saturated-steam service within the 125 psi WSP rating. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order. The 1\/2 psi cracking pressure suits low-head gravity and recirculation loops.\u003c\/p\u003e\n\u003ch2\u003eCross-References \u0026amp; Interchange\u003c\/h2\u003e\u003cp\u003eReplacing another brand's 2 in. stainless inline check valve? Match nominal size, end connections, cracking pressure, and pressure rating for a direct fit — or send us your part number and we will confirm the interchange. Water or air service on a budget? The \u003ca style=\"color:#FE8C03\" href=\"\/products\/2-in-brass-inline-check-valve-buna-n-944408\"\u003e2 in. brass inline check valve (944408)\u003c\/a\u003e costs less (not lead-free).\u003c\/p\u003e\n\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained (Swing vs. Spring vs. Wafer)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca style=\"color:#FE8C03\" href=\"\/pages\/valve-pressure-temperature-ratings-chart\"\u003eValve Pressure \u0026amp; Temperature Ratings Chart\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740990451927,"sku":"949408","price":928.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949408.jpg?v=1780662541"},{"product_id":"3-8-in-stainless-steel-spring-check-valve-mpt-x-fpt-949472","title":"3\/8 in. Stainless Steel Spring Check Valve, MPT x FPT","description":"\u003cp\u003eThe \u003cstrong\u003e3\/8 in. Stainless Steel Spring Check Valve, MPT x FPT (#949472)\u003c\/strong\u003e is a stainless steel spring check valve with a spring-loaded poppet that closes to prevent reverse flow. Its male x female threaded ends install inline.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949472\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/8 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSpring Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eMPT x FPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpring-loaded poppet — closes on flow reversal\u003c\/li\u003e\n\u003cli\u003e316 stainless steel body\u003c\/li\u003e\n\u003cli\u003eMPT x FPT (male x female NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater, oil and gas service, pump and compressor lines, and general industrial systems requiring backflow prevention. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740991008983,"sku":"949472","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949472.jpg?v=1780662640"},{"product_id":"3-4-in-stainless-steel-spring-check-valve-mpt-x-fpt-949474","title":"3\/4 in. Stainless Steel Spring Check Valve, MPT x FPT","description":"\u003cp\u003eThe \u003cstrong\u003e3\/4 in. Stainless Steel Spring Check Valve, MPT x FPT (#949474)\u003c\/strong\u003e is a stainless steel spring check valve with a spring-loaded poppet that closes to prevent reverse flow. Its male x female threaded ends install inline.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949474\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e3\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSpring Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eMPT x FPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpring-loaded poppet — closes on flow reversal\u003c\/li\u003e\n\u003cli\u003e316 stainless steel body\u003c\/li\u003e\n\u003cli\u003eMPT x FPT (male x female NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater, oil and gas service, pump and compressor lines, and general industrial systems requiring backflow prevention. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740991205591,"sku":"949474","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949474.jpg?v=1780662643"},{"product_id":"1-in-stainless-steel-spring-check-valve-mpt-x-fpt-949475","title":"1 in. Stainless Steel Spring Check Valve, MPT x FPT","description":"\u003cp\u003eThe \u003cstrong\u003e1 in. Stainless Steel Spring Check Valve, MPT x FPT (#949475)\u003c\/strong\u003e is a stainless steel spring check valve with a spring-loaded poppet that closes to prevent reverse flow. Its male x female threaded ends install inline.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949475\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSpring Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eMPT x FPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpring-loaded poppet — closes on flow reversal\u003c\/li\u003e\n\u003cli\u003e316 stainless steel body\u003c\/li\u003e\n\u003cli\u003eMPT x FPT (male x female NPT) connection\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Applications\u003c\/h2\u003e\u003cp\u003eWater, oil and gas service, pump and compressor lines, and general industrial systems requiring backflow prevention. For chemical service, ask us — we confirm compatibility with the manufacturer for your media before you order.\u003c\/p\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740991238359,"sku":"949475","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949475.jpg?v=1780662645"},{"product_id":"1-in-stainless-steel-y-pattern-spring-check-valve-949485","title":"1 in. Stainless Steel Y-Pattern Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1 in. Stainless Steel Y-Pattern Spring Check Valve (#949485)\u003c\/strong\u003e is a stainless steel Y-pattern spring check valve that allows flow in one direction and automatically prevents reverse flow. The angled Y-body gives low pressure drop and an inline-serviceable seat; stainless construction resists corrosion.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eY-Pattern Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eY-pattern body — low pressure drop, serviceable seat\u003c\/li\u003e\n\u003cli\u003eSpring-loaded — closes in any orientation\u003c\/li\u003e\n\u003cli\u003eStainless steel — corrosion-resistant\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740991271127,"sku":"949485","price":91.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949485.jpg?v=1780662650"},{"product_id":"1-1-2-in-stainless-steel-y-pattern-spring-check-valve-949487","title":"1-1\/2 in. Stainless Steel Y-Pattern Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/2 in. Stainless Steel Y-Pattern Spring Check Valve (#949487)\u003c\/strong\u003e is a stainless steel Y-pattern spring check valve that allows flow in one direction and automatically prevents reverse flow. The angled Y-body gives low pressure drop and an inline-serviceable seat; stainless construction resists corrosion.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949487\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eY-Pattern Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eY-pattern body — low pressure drop, serviceable seat\u003c\/li\u003e\n\u003cli\u003eSpring-loaded — closes in any orientation\u003c\/li\u003e\n\u003cli\u003eStainless steel — corrosion-resistant\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740991402199,"sku":"949487","price":148.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949487.jpg?v=1780662657"},{"product_id":"1-1-4-in-stainless-steel-y-pattern-spring-check-valve-949486","title":"1-1\/4 in. Stainless Steel Y-Pattern Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e1-1\/4 in. Stainless Steel Y-Pattern Spring Check Valve (#949486)\u003c\/strong\u003e is a stainless steel Y-pattern spring check valve that allows flow in one direction and automatically prevents reverse flow. The angled Y-body gives low pressure drop and an inline-serviceable seat; stainless construction resists corrosion.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949486\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e1-1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eY-Pattern Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eY-pattern body — low pressure drop, serviceable seat\u003c\/li\u003e\n\u003cli\u003eSpring-loaded — closes in any orientation\u003c\/li\u003e\n\u003cli\u003eStainless steel — corrosion-resistant\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740994121943,"sku":"949486","price":121.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949486.jpg?v=1780662727"},{"product_id":"2-in-stainless-steel-y-pattern-spring-check-valve-949488","title":"2 in. Stainless Steel Y-Pattern Spring Check Valve","description":"\u003cp\u003eThe \u003cstrong\u003e2 in. Stainless Steel Y-Pattern Spring Check Valve (#949488)\u003c\/strong\u003e is a stainless steel Y-pattern spring check valve that allows flow in one direction and automatically prevents reverse flow. The angled Y-body gives low pressure drop and an inline-serviceable seat; stainless construction resists corrosion.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e949488\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Size\u003c\/td\u003e\n\u003ctd\u003e2 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eY-Pattern Check Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Connections\u003c\/td\u003e\n\u003ctd\u003eFPT x FPT (female NPT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eY-pattern body — low pressure drop, serviceable seat\u003c\/li\u003e\n\u003cli\u003eSpring-loaded — closes in any orientation\u003c\/li\u003e\n\u003cli\u003eStainless steel — corrosion-resistant\u003c\/li\u003e\n\u003cli\u003eLow-maintenance, self-operating design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Resources\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/pages\/check-valve-types-explained\"\u003eCheck Valve Types Explained\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c!-- apex-guide-links --\u003e\n\u003cdiv style=\"margin-top:24px;padding:16px 20px;border:1px solid #ddd;border-radius:6px;background:#fafafa;\"\u003e\n\u003ch3 style=\"margin:0 0 10px;font-size:1.05rem;\"\u003eExpert Guides for This Product\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-installation-direction-orientation\"\u003eCheck Valve Orientation \u0026amp; Installation\u003c\/a\u003e — flow direction and mounting rules\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-sizing-guide\"\u003eCheck Valve Sizing Guide\u003c\/a\u003e — why line size isn't valve size\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-slamming-water-hammer\"\u003eSlamming \u0026amp; Water Hammer\u003c\/a\u003e — causes and fixes\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-leaking-diagnosis\"\u003eCheck Valve Leaking?\u003c\/a\u003e — diagnose and fix it\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/check-valve-chattering-noise\"\u003eCheck Valve Chattering\u003c\/a\u003e — the sizing problem nobody checks\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color:#FE8C03\" href=\"\/pages\/buna-vs-viton-check-valve-seats\"\u003eBuna vs. Viton Seats\u003c\/a\u003e — which elastomer fits your media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- \/apex-guide-links --\u003e","brand":"Midland Industries","offers":[{"title":"Default","offer_id":48740994187479,"sku":"949488","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_949488.jpg?v=1780662731"}],"url":"https:\/\/apexflowsolutions.com\/collections\/stainless-steel-check-valves.oembed?page=3","provider":"Apex Flow Solutions","version":"1.0","type":"link"}