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A check valve, or one-way valve, is designed to allow fluid to flow through it in only one direction. They are ideal where backflow could potentially cause damage to pumps, filters, or process equipment. Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to exit. There are various types of check valves used in a wide variety of applications such as water and chemical. Swing, ball, Y-check, spring and wafer are a few of the different types of check valves. Although they are available in a wide range of sizes and costs, many check valves are small and simple. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. Standard Sizes 1/2" - 24" diameter Sizes and materials are brand specific. Click on a manufacturer below for available products. Please contact Aetna Plastics for pricing information. Corrosion Guide for Common Piping Materials and Seal Elastomers (PDF) |
Manufacturers Asahi/America - Size Range: 1/2" - 8"
- Materials: PVC, CPVC, PP and PVDF
- Products: Swing Check Valve, True Union Ball Check Valve, Single Union Ball Check Valve
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Cepex - Size Range: 1/2" - 8"
- Materials: PVC and CPVC
- Products: Spring Check Valves, Ball Check Valves, Wafer Check Valves
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Chemtrol® Size Range: 1/2" - 4" Materials: PVC, CPVC, PP and PVDF Products: True Union Ball Check Valves
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+GF+ - Size Range: 3/8" - 12"
- Materials: PVC, CPVC, PP and PVDF
- Products: Type 360 True Union Ball Check Valve, Type 369 Wafer Check Valve, Type 304 Translucent Y-Check Valve
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Hayward - Size Range: 1/4" - 20"
- Materials: PVC, CPVC, PP and PVDF
- Products: TC and TCB Series True Union Ball Check Valves, Y-Check Valves, Swing Check Valves, Wafer Check Valves
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Plast-O-Matic - Size Range: 1/4" - 3"
- Materials: PVC, CPVC, PP, PVDF and PTFE
- Products: Series CK, CKM, CKS and CKD Diaphragm Check Valves
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Spears - Size Range: 1/2" - 24"
- Materials: PVC, CPVC and PP
- Products: Ball Check Valves, Swing Check Valves, Butterfly Check Valves
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