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White PVC wafer check valve with stainless steel spring visible inside flange connection

Hayward

Hayward WCV1300ES Check Valve Wafer 3" PVC/EPDM SS Spring

SKU CH-15WW-78RGK

Inline wafer check valve with PVC body, EPDM seals and stainless-steel spring for 150 psi water service

  • Reliable back-flow prevention with 1 psi cracking pressure
  • Durable PVC body handles 150 psi at 70 Degrees F
  • EPDM seals operate from 40 to 140 Degrees F
  • Stainless steel spring ensures consistent valve action
  • Wafer flange design fits 3 in piping systems

Check Valve Wafer 3″ PVC/EPDM

The Hayward WCV1300ES is a wafer-style check valve with a 3-inch flange connection. Its body and seat are PVC and EPDM with a stainless-steel spring for corrosion resistance. The single-disc inline design allows flow in one direction while preventing backflow. It mounts horizontally or vertically in compatible piping systems.

Suits water lines up to 150 psi at 70°F

This valve handles water service between 40 and 140°F at pressures up to 150 psi. It is not rated for steam, so installers needing steam service must choose a different valve. Buyers requiring a cracking pressure other than 1 psi or a body material other than PVC should look elsewhere. The wafer pattern fits between standard flanges without extra adapters.

Verify flange size and media compatibility

Confirm the piping uses 3-inch flanges that match the wafer connection style. Ensure the process fluid is compatible with PVC, EPDM seals and stainless-steel spring material. Check that operating temperature stays within the 40 to 140°F range and pressure does not exceed 150 psi at 70°F. Steam applications are not supported by this model.

Highlights

  • Reliable back-flow prevention with 1 psi cracking pressure
  • Durable PVC body handles 150 psi at 70 Degrees F
  • EPDM seals operate from 40 to 140 Degrees F
  • Stainless steel spring ensures consistent valve action
  • Wafer flange design fits 3 in piping systems

Specifications

BrandHAYWARD FLOW CONTROL

Questions about this item

What flange size must my existing piping have to bolt this 3" wafer check valve in place?

The valve is designed for 3-inch flange connections on both ends, so your pipework needs matching 3" flanges for a direct bolt-up.

Will the 1 psi cracking pressure and 150 psi @ 70°F rating work with my older pump that runs at lower pressure?

Yes, the low 1 psi cracking pressure lets flow start easily, while the 150 psi rating at 70°F provides ample margin for typical legacy pump outputs.

How can I confirm the valve is sealing correctly after installation?

Pressurise the line up to the 150 psi rating and verify no leakage past the EPDM seat; the stainless-steel spring should snap the disc shut when flow stops.

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