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White PVC Y-pattern check valve with true union socket ends and stainless spring

Hayward

Hayward SLC10100SU Y-Check Valve True Union Spring-Loaded 1 in

SKU CH-K140-79NRM

Spring-loaded Y-check valve with true-union socket connections for 1 in PVC pipe, rated 150 psi at 70 °F and operating from 40 to 140 °F

  • Spring-loaded Y-check design prevents backflow with reliable sealing
  • True union socket connections allow quick installation and easy maintenance
  • FPM seals and stainless-steel spring resist chemicals and corrosion
  • Operates from 40 to 140 degrees F for versatile plumbing use
  • Rated to 150 psi at 70 degrees F for dependable pressure handling

Application Scope

The Hayward SLC10100SU is a true-union Y-pattern check valve built for 1-inch PVC piping systems. Its spring-loaded design provides positive shut-off against back-flow in pool, spa and irrigation circuits. The valve handles water pressures up to 150 psi at 70 Degrees F and operates between 40 and 140 Degrees F.

Suitability

This valve suits installers who need a removable, socket-weld check valve with a low cracking-pressure range of 2.000 to 15.000 psi. The FPM seals and stainless-steel spring resist common pool chemicals. It is not rated for steam service and the true-union ends require solvent-cement sockets, so systems using threaded, flanged or compression connections cannot use this model directly.

Deciding Specification

The socket-by-socket true-union connection combined with a 1-inch pipe size is the single detail that determines fit. Verify the existing line uses 1-inch PVC socket ends and that the required cracking pressure falls within the 2.000 to 15.000 psi range before purchasing.

Highlights

  • Spring-loaded Y-check design prevents backflow with reliable sealing
  • True union socket connections allow quick installation and easy maintenance
  • FPM seals and stainless-steel spring resist chemicals and corrosion
  • Operates from 40 to 140 degrees F for versatile plumbing use
  • Rated to 150 psi at 70 degrees F for dependable pressure handling

Specifications

BrandHAYWARD FLOW CONTROL

Questions about this item

What pipe size and connection type must the existing plumbing have for this 1 in Y-check valve?

The valve is built for 1 in pipe with socket-by-socket connections, so the mating pipe and fittings must be 1 in socket ends.

Can this spring-loaded check valve be installed in the same horizontal or vertical runs as an older swing-check valve?

Yes, the valve is rated for both horizontal and vertical mounting orientations, so it can replace a swing check in either position.

How can I verify the valve is sealing properly after installation?

Apply system pressure up to 150 psi at 70 °F; the valve should open between 2.000 and 15.000 psi and close with zero leakage when flow stops.

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