{"product_id":"12-fxf-500-psi-check-valve-46563","title":"1\/2 in. Brass Spring Check Valve, 500 PSI, Female NPT x Female NPT, NBR Seal","description":"\u003cp\u003eThe \u003cstrong\u003e1\/2 in. Female x Female 500 PSI Check Valve\u003c\/strong\u003e (#46563) is a 500 PSI rated brass check valve with Buna-N (NBR) seals, designed for high-pressure shutoff and backflow prevention in water, oil, and compatible chemical service. Female NPT × Female NPT connections install directly inline with standard pipe threads.\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\u003eBrass body\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\u003eSeal \/ O-ring\u003c\/td\u003e\n\u003ctd\u003eBuna-N (NBR)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e500 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e−20°F to 250°F (−29°C to 121°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eAny orientation (vertical or horizontal)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e46563\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\u003eBrass body \/ Stainless spring construction\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded — closes automatically when flow stops or reverses\u003c\/li\u003e\n  \u003cli\u003eInstall in any orientation — vertical or horizontal\u003c\/li\u003e\n  \u003cli\u003eBuna-N (NBR) seals — compatible with water, oils, and most process fluids\u003c\/li\u003e\n  \u003cli\u003eCracking pressure factory-set for reliable sealing\u003c\/li\u003e\n  \u003cli\u003eCompact inline form factor — minimal installation space required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\u003cp\u003eSpecified for high-pressure water supply, hydraulic return lines, compressed air, and industrial process piping where standard 150 PSI check valves are insufficient. 500 PSI rating suits pumped systems, booster pumps, and pressure-boosted water lines.\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 — Understand the differences\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/pages\/how-to-choose-the-right-valve\"\u003eHow to Choose the Right Valve\u003c\/a\u003e — Application selection guide\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/brass-check-valves\"\u003eShop Brass Check Valves\u003c\/a\u003e — Full brass check valve range\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCross-References\u003c\/h2\u003e\u003cp\u003e6540090, CLB-3434\u003c\/p\u003e\n\u003ch2\u003eOther Sizes in This Series\u003c\/h2\u003e\n\u003cp\u003eThe 500 PSI Brass Spring Check Valve (Female NPT x Female NPT, Buna-N) is available in the following sizes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003cth\u003eCart\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/18-fxf-500-psi-check-valve-46560\"\u003e1\/8 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e46560\u003c\/td\u003e\n\u003ctd\u003e$26.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646775800023\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/14-fxf-500psi-check-valve-46561\"\u003e1\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e46561\u003c\/td\u003e\n\u003ctd\u003e$29.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=48646775832791\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\/2 in.\u003c\/td\u003e\n\u003ctd\u003e46563\u003c\/td\u003e\n\u003ctd\u003e$53.99\u003c\/td\u003e\n\u003ctd\u003e(this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/3-4-in-brass-spring-check-valve-500-psi-female-npt-x-female-npt-nbr-seal-46564\"\u003e3\/4 in.\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e46564\u003c\/td\u003e\n\u003ctd\u003e$67.99\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/cart\/add?id=49429247066327\u0026amp;quantity=1\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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":48646775931095,"sku":"46563","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/4152\/8791\/files\/MIDLANDINDUSTRIES_46563.jpg?v=1779367489","url":"https:\/\/apexflowsolutions.com\/products\/12-fxf-500-psi-check-valve-46563","provider":"Apex Flow Solutions","version":"1.0","type":"link"}