3/8 in. Inline Check Valve
3/8 in. Inline Check Valve
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The 3/8 in. Inline Check Valve (#944429) is a spring-loaded brass inline check valve that allows flow in one direction and closes automatically to prevent backflow. Midland lists it for use vertically or horizontally.
Technical Specifications
| Specification | Value |
|---|---|
| Body Material | Brass body |
| Spring Material | Stainless Steel |
| Pressure Rating | 200 psi WOG; 125 psi WSP (saturated steam) |
| Temperature Range | 14°F to 248°F |
| Installation | Vertical or horizontal |
| Part Number | 944429 |
Key Features
- Brass body / Stainless spring construction
- Spring-loaded — closes automatically when flow stops or reverses
- Can be used vertically or horizontally
- Compact inline form factor — minimal installation space required
Common Applications
Pump discharge, water, oil and gas lines and general industrial piping where reverse flow would damage equipment. Not lead-free — not for potable water service. For chemical service, ask us to confirm compatibility with the manufacturer before you order.
Technical Resources
- Check Valve Types: Swing, Spring, Wafer, Ball — Understand the differences
- Shop Brass Check Valves — Full brass 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