1/4 in. Brass Spring Check Valve, 500 PSI, Female NPT x Female NPT, Viton Seal
1/4 in. Brass Spring Check Valve, 500 PSI, Female NPT x Female NPT, Viton Seal
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The 1/4 in. Female x Female 500 PSI Check Valve with Viton (#46561V) is a 500 PSI rated brass check valve with Viton (FKM) 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.
Technical Specifications
| Specification | Value |
|---|---|
| Body Material | Brass body |
| Spring Material | Stainless Steel |
| Seal / O-ring | Viton (FKM) |
| Pressure Rating | 500 PSI |
| Temperature Range | −20°F to 250°F (−29°C to 121°C) |
| Installation | Any orientation (vertical or horizontal) |
| Part Number | 46561V |
Key Features
- Brass body / Stainless spring construction
- Spring-loaded — closes automatically when flow stops or reverses
- Install in any orientation — vertical or horizontal
- Viton (FKM) seals — compatible with hydrocarbons, solvents, and aggressive chemicals
- Cracking pressure factory-set for reliable sealing
- Compact inline form factor — minimal installation space required
Common Applications
Specified 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.
Technical Resources
- Check Valve Types: Swing, Spring, Wafer, Ball — Understand the differences
- How to Choose the Right Valve — Application selection guide
- Shop Brass Check Valves — Full brass check valve range
Cross-References
6490290
Other Sizes in This Series
The 500 PSI Brass Spring Check Valve (Female NPT x Female NPT, Viton) is available in the following sizes:
| Size | Part # | Price | Cart |
|---|---|---|---|
| 1/8 in. | 46560V | $26.99 | Add to cart |
| 1/4 in. | 46561V | $31.99 | (this page) |
| 3/4 in. | 46564V | $66.99 | Add to cart |
Prefer standard Buna-N seals for water/air service? See the Buna-N version (46561).
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