3/4 in. Brass Y-Pattern Check Valve, Threaded (NPT)
3/4 in. Brass Y-Pattern Check Valve, Threaded (NPT)
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The 3/4 in. Brass Y-Pattern Check Valve, Threaded (#940353B) is a brass Y-pattern check valve that allows flow in one direction and automatically prevents reverse flow (backflow). The angled Y-body gives low pressure drop and an inline-serviceable seat. Built for reliable, low-maintenance service.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 940353B |
| Nominal Size | 3/4 in. |
| Type | Y-Pattern Check Valve |
| Body Material | Brass |
| Connection | Threaded (NPT) |
Key Features
- Automatic backflow prevention — opens with forward flow, closes on reverse
- Y-pattern body — low pressure drop, serviceable seat
- Brass construction
- Threaded (NPT) connection
Common Applications
Water distribution and treatment, HVAC, pump discharge lines, irrigation, and general industrial flow systems requiring dependable backflow prevention.
Technical Resources
Cross-References
532T04
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