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White CPVC inline check valve with FNPT and socket ends

HAYWARD POOL PRODUCTS INC

HAYWARD POOL PRODUCTS INC TC20075ST 3/4" FNPT Socket CPVC Check Valve

SKU CH-SRT9-7GFYN MPN TC20075ST

A 3/4 inch FNPT socket CPVC check valve rated for 235 psi at 70 degrees F with a 3 psi cracking pressure and Viton seals

  • TypeDrain Components
  • MaterialHAWA
  • Prevents backflow with a 3 psi cracking pressure
  • Handles 10 gpm full flow through 3/4" FNPT socket connections
  • CPVC body with Viton seals withstands 190 °F max temperature
  • Rated for 235 psi water pressure at 70 °F operating conditions
  • True union inline design allows vertical mounting and easy maintenance

Pool plumbing check valve

The Hayward TC20075ST is a CPVC inline true union check valve with FNPT and socket connections for 3/4 inch pipe. It uses a Viton seal and a single flow-design mechanism that opens at 3 psi cracking pressure. The valve is rated for 235 psi water pressure at 70 degrees F and handles temperatures from 40 to 190 degrees F.

Suitable for vertical pool lines

This valve installs vertically in pool and spa circulation systems where back-flow prevention is required and CPVC chemical resistance is specified. It is not for horizontal runs, steam service, or installations that demand a lower cracking pressure or a different body material such as PVC or metal.

Sustained pressure and temperature performance

Under continuous operation the CPVC body and Viton seat maintain sealing integrity up to the 190 degree F limit and the full 235 psi rating at 70 degrees F. The 10 gpm full-flow capacity remains stable without the pressure drop spikes that can occur during brief start-up surges.

Highlights

  • Prevents backflow with a 3 psi cracking pressure
  • Handles 10 gpm full flow through 3/4" FNPT socket connections
  • CPVC body with Viton seals withstands 190 °F max temperature
  • Rated for 235 psi water pressure at 70 °F operating conditions
  • True union inline design allows vertical mounting and easy maintenance

Specifications

TypeDrain Components
MaterialHAWA
BrandHayward
ModelTC20075ST

Questions about this item

What pipe size and connection type must my existing plumbing have to fit the 3/4 in FNPT x Socket check valve?

Your plumbing must be 3/4 inch nominal size with a female NPT thread on one side and a solvent-weld socket on the other to match the valve's FNPT x Socket connections.

Can the CPVC valve rated for 235 psi at 70 Degrees F handle the pressure from my older schedule 40 PVC pump line?

Yes, standard schedule 40 PVC at 70 Degrees F is rated well above 235 psi, so the valve's 235 psi limit will not be exceeded by the older line.

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

Run water through the line; flow should pass freely in the forward direction and stop completely when the pump shuts off, showing the 3 psi cracking pressure is sealing properly.

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