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Check Valves

A check valve, or one-way valve, is designed to allow fluid to flow through it in only one direction. They are ideal where back-flow 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.

To view material Corrosion Guides, visit our Technical Specifications page.

Manufacturers

Asahi/America

  • Size Range: 1/2" - 12"
  • Materials: PVC, CPVC, PP and PVDF
  • Products: Swing Check Valves, True Union Ball Check Valves, Single Union Ball Check Valves, Wafer Check Valves
Cepex

  • Size Range: 1/2" - 8"
  • Materials: PVC and CPVC
  • Products: Spring Check Valves, Ball Check Valves, Wafer Check Valves
Chemtrol®

  • Size Range: 1/2" - 4"
  • Materials: PVC, CPVC, PP and PVDF
  • Products: True Union Ball Check Valves
Georg Fischer

  • Size Range: 3/8" - 12"
  • Materials: PVC, CPVC, PP and PVDF
  • Products: Type 561/562 Cone Check Valves, Type 369 Wafer Check Valves, Type 304 Angle Seat Check Valves
Hayward

  • Size Range: 1/4" - 20"
  • Materials: PVC, CPVC, PP and PVDF
  • Products: TC Series True Union Ball Check Valves, Y-Check Valves, Swing Check Valves, Wafer Check Valves
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
Spears

  • Size Range: 1/2" - 24"
  • Materials: PVC, CPVC and PP
  • Products: Ball Check Valves, Swing Check Valves, Butterfly Check Valves