1/4 in. Stainless Steel Female x Female Spring Check Valve
1/4 in. Stainless Steel Female x Female Spring Check Valve
✓ In stock at the manufacturer — typically ships within 1–2 business days.
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The 1/4 in. Stainless Steel Female x Female Spring Check Valve (#949451) is a 316 stainless steel spring check valve that allows flow in one direction and closes to prevent reverse flow.
Technical Specifications
| Specification | Value |
|---|---|
| Body Material | 316 Stainless Steel |
| End Connections | FPT x FPT (female NPT both ends) |
| Pressure Rating | 1500 psi |
| Seal | Rubber (ask us for the compound) |
| Temperature Range | Ask us — Midland's published figures differ; we confirm the rating for this model |
| Part Number | 949451 |
Key Features
- Spring-loaded — closes automatically on flow reversal
- 316 stainless steel body
- Female NPT x female NPT connections
Common Applications
Water, 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.
Technical Resources
- Check Valve Types: Swing, Spring, Wafer, Ball — Compare check valve styles
- Shop Stainless Check Valves — Full SS check valve range
Expert Guides for This Product
- Check Valve Orientation & Installation — flow direction and mounting rules
- Check Valve Sizing Guide — why line size isn't valve size
- Slamming & Water Hammer — causes and fixes
- Check Valve Leaking? — diagnose and fix it
- Check Valve Chattering — the sizing problem nobody checks
- Buna vs. Viton Seats — which elastomer fits your media