Check valves are automatic shut-off valves that are commonly used for preventing backflow or drainage in a piping system. Often applied on the discharge side of pumps, check valves prevent the system from draining if the pump stops and protects against backflow, which could harm the pump and/or other equipment.
Features
- Quick Closure to Reduce Water Hammer: Silent shut-off is achieved via the fully automatic, spring assisted disc that closed near zero flow velocity. The lightweight, center guided disc design creates a positive shutoff prior to flow reversal and helps to keep slamming and surges to a minimum
- Versatile and Economical Design: Can be installed in any position (horizontal or vertical with an upward flow) - Call for vertical with downward flow
- Bubble Tight Seal: By utilizing a Nitrile Rubber seat and patented disc guide, the CV 20-BZ in-line check valve maintains a bubble tight seal that meets or exceeds API 598 leakage requirements
- Minimal Head Loss: The contour of body and check module provides a low profile that generates very little turbulence - additionally, the spring-loaded, center guided disc is designed with low cracking pressure which reduces the amount of energy required to open the valve
- Designed for Long Service Life: Highly advanced materials coupled with a patented disc design can provide a long service life for a wide variety of applications
Specifications
- Sizes: 1/2 - 2 in.
- End Type: Threaded (Hexed) - female to female per ANSI B 1.20.1
- Material: Brass (CW 617N)
- Type: Silent Check Valve
- Pressure/Temperature Rating: 400 PSI @ 100°F
- Low Cracking Pressure: 1/2 PSI
- Max Steam: Not recommended
- Seat Temp. Rating (Nitrile Rubber): 212°F @ 170 PSI
- Spring Temp. Rating (300 SS): 450°F
- Check Module Temp. Rating (Polyetherimide): 365°F
- Referenced Standards & Codes: ASME B1.1 - Unified Inch Screw Threads; ASME B1.20.1 - Pipe Threads - General Purpose; ANSI B16.15 - Cast Bronze Threaded Fittings
- Markets: Oil & Gas Production, General Industry, Chemical, Petrochemical, Power, Food & Beverage
Downloads
Threaded End Style - Silent Check Valve Installation - Operation - Maintenance Guide (PDF Download)
