Spears S1520 PVC Utility Swing...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$17.55
Spears S1520 PVC Utility Swing Check Valve, SOC EPDM Seal

Spears S1520 PVC Utility Swing Check Valve, SOC EPDM Seal

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Model: S1520-12

In Stock (leaves warehouse same day if ordered before 3pm ET)

$17.55
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Spears PVC Utility Swing Check Valve, SOC EPDM Seal

The Spears PVC Utility Swing Check Valve, SOC EPDM Seal is a socket-connection (SOC) valve engineered for dependable backflow prevention in PVC piping systems, available in trade sizes from 1" to 2" (1", 1-1/4", 1-1/2", and 2") to fit a range of pipe diameters. Constructed from durable PVC for corrosion resistance, this utility swing check valve incorporates an EPDM seal for a reliable, tight shutoff across every size in the lineup. Designed for straightforward socket (SOC) installation, it is a practical choice for residential, commercial, and irrigation plumbing systems that require dependable one-directional flow control without the added cost or weight of metal valve bodies.

Key Features

  • Trade Size Range: Available in 1", 1-1/4", 1-1/2", and 2" socket (SOC) connections sized for direct solvent-weld installation into PVC piping runs.
  • Durable Construction: PVC body resists corrosion, rust, and chemical attack, making it well suited to fluid-handling environments where metal valves would degrade.
  • EPDM Seal: An EPDM seat/seal provides a reliable, tight closure that helps prevent backflow and maintain consistent system pressure.
  • Utility Swing Check Design: The swing check mechanism allows unrestricted forward flow while closing automatically to block reverse flow.
  • Socket (SOC) Connections: Socket ends allow the valve to be solvent-welded directly to PVC pipe and fittings for a secure, leak-resistant joint across all available sizes.
  • Lightweight Installation: The PVC construction keeps the valve lightweight compared to metal alternatives, easing handling and installation in the field.

Technical Specifications

  • Product Material: PVC
  • Connection Type: Socket (SOC)
  • Seal Material: EPDM
  • Trade Size Range: 1" - 2" (1", 1-1/4", 1-1/2", 2")

Typical Applications

  • Residential and Commercial Plumbing Systems
  • PVC Piping and Backflow Prevention
  • Irrigation and Water Distribution Lines
  • Pump Discharge and Suction Lines
  • Renovation and New Construction Plumbing Projects

Why Spears?

Spears is a recognized manufacturer of PVC and CPVC fittings and valves for plumbing and fluid-handling systems. This Utility Swing Check Valve pairs a durable PVC body with an EPDM seal to deliver consistent, dependable backflow prevention across its full 1" to 2" size range for professional installations. Choose Spears for corrosion-resistant valve solutions built to perform reliably in demanding piping systems.

Product Specs

Product Type:
Swing Check Valve
Department:
Plumbing
Product Group:
PVC & CPVC Fittings
Product Material:
PVC
Connection Type:
Socket (SOC)
Product Size:
1" - 2"

Spears S1520-12 – Frequently Asked Questions

1) What sizes does the Spears S1520 utility swing check valve come in?
The S1520 utility swing check valve is offered in four socket sizes: 1 inch (S1520-10), 1-1/4 inch (S1520-12), 1-1/2 inch (S1520-15), and 2 inch (S1520-20). All four are solvent-weld socket ends, so you match the valve to the nominal PVC pipe size in the run.
2) Is the Spears S1520 check valve threaded or solvent weld?
Solvent weld. The S1520 has socket (SOC) ends that cement directly to PVC pipe, so there is no threading and no union nut. If you need to be able to break the valve out of the line later for service, a socket-end utility check is the wrong pick, plan a pair of unions around it or go to a true union check valve.
3) Can I install this Spears swing check valve vertically on a pump discharge?
A swing check relies on a hinged disc and gravity assist to seat, so it is intended for horizontal runs or vertical runs with flow going up. It will not seat reliably in a down-flow vertical line. Spears lists pump discharge and suction lines among the applications for the S1520, so a vertical riser off a pump with upward flow is within its intended use. Whichever way it goes in, the flow arrow on the body has to follow the direction of flow.
4) Can I use the Spears S1520 check valve on a CPVC hot water line?
No. The S1520 body is PVC, which is a cold-water material. Hot water service calls for a CPVC valve. Use the S1520 on cold water, irrigation, and general fluid-handling runs only.
5) Will an EPDM-sealed PVC check valve hold up in a chlorinated irrigation or water line?
The seal in the S1520 is EPDM and the body is PVC, a combination aimed at water service, irrigation lines, and general fluid handling where a metal body would corrode. EPDM is the standard water-service elastomer here. For petroleum-based or oil-bearing fluids, EPDM is not the right elastomer and you want a Viton-sealed valve instead.
6) What is the difference between a utility swing check and a true union check valve?
The S1520 is a utility swing check: solvent-weld socket ends, permanently cemented into the line, and it swings open on forward flow and drops closed on reverse. A true union check has union nuts on both ends so you can unbolt the body out of the pipe to inspect or replace the seal without cutting pipe. Use the utility swing where the valve is set-and-forget and cost and weight matter, and a true union where you expect to service it.
7) Does a PVC swing check valve count as backflow prevention for a potable water system?
A swing check like the S1520 is a one-directional flow control device. It blocks reverse flow mechanically, which is what most irrigation, pump, and general plumbing runs need. It is not a testable backflow preventer assembly, so if a code official is requiring a certified device on a potable cross-connection, a check valve on its own will not satisfy that requirement.
How fast can I get the Spears S1520-12 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Spears S1520-12 come with a warranty?
Absolutely. The Spears S1520-12 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Spears S1520-12?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Spears S1520-12 from ZenSupply?
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