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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.

How it compares

Measured against everything we stock in Plumbing Valves & Valve Assemblies, at today’s prices. Recalculated every night.

Price $384.99
Pricier than about 90% of the 720 comparable items (median $47.49).

Specifications

Product
Brand nameHAYWARD 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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