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.
Note: Intended for liquid service that is steady, clean (no abrasives or solids) and non-pulsating. Flow rate should not exceed 15 ft/sec. Not recommended for steam or reciprocating compressor service.
Features
- Economical Design: Low weight and short laying length produce savings in initial cost, space requirements, and installation when compared to full-body, swing type check valves
- Minimal Head Loss: Head loss is minimized by providing a short, straight and virtually unobstructed flow path - Additionally, the spring loaded disc is designed with very low cracking pressure which reduces the amount of energy required to open the valve
- Quick Closure to Reduce Water Hammer: Shut-off is achieve via the fully automatic, spring assisted disc that closes near zero flow velocity - the lightweight, sing disc design creates a positive shutoff prior to flow reversal which helps keep surges to a minimum
- Durable, High Quality Design: The CV32 check valve has a carbon steel body which allows it to perform well in higher temperature applications - units are epoxy painted
- Resilient Soft Seats: Viton coupled with precision machined sealing surfaces help to ensure a bubble tight seal that meets or exceeds API 598 test requirements
Specifications
- Sizes: 2 - 8 in. - Larger sizes available - Please call for more information
- Type: Wafer - Single Disc - Swing Check Valve
- ASME Class: 150
- Body: Carbon Steel (A216 Gr. WCB) - Epoxy Coated
- Seat: Viton
- Disc: Stainless Steel
- Pressure/Temperature Rating: 285 PSI @ 100°F
- Viton Temp. Range: -40 - 400°F
- Stainless Steel Spring Temp. Rating: 450°F
- Low Cracking Pressure: 1/4 PSI
- Referenced Standards & Codes: ASME B16.34 - Steel Valves - Flanged, Threaded, & Welding Ends; ASME B16.10 - Face to Face & End to End Dimensions of Values; ASME B16.5 - Pipe Flanges and Flanged Fittings; API 598 - Valve Inspection and Pressure Test; MSS SP-6 - Standards Finishes for Connecting-end Flanges; MSS SP-25 - Standard Marking System for Valves; MSS SP-55 - Quality Standard for Valve Castings
- Markets: General Industry, Chemical & Petrochemical, Power, and Food & Beverage
Downloads
Wafer Style - Dual Plate Check Valve Installation - Operation - Maintenance Guide (PDF Download)
