The Zurn Wilkins 34-975XL2U is a 3/4" lead-free reduced pressure zone (RPZ) backflow preventer with FNPT connections, approved for high health hazard protection. It features a bronze body. Rated to 175 psi and up to 180°F. This model is certified lead-free for potable-water installations.
The Wilkins 975XL2U Reduced Pressure Principle Backflow Preventer provides high hazard protection for potable water applications. The wye pattern, bronze body backflow preventer is assembled with union ball valve shutoffs
Features
- Unions between body an shut-off valves allows body to easily be removed from the line
- Well suited to irrigation applications that require removal of the valve during the winter months
- Low-lead law compliant
Common Questions
- What hazard level is this RPZ approved for?
- It is rated for high health hazard (toxic) cross-connections, so it may be used on either high or low hazard service. The assembly is listed to ASSE 1013.
- Is this model legal for potable water?
- Yes. It is certified lead-free to NSF/ANSI 372, which is what state plumbing codes require for any device in a drinking-water line.
- Does this assembly have to be tested every year?
- Yes. This is a field-testable assembly with 4 test cocks. Most water authorities require it to be tested and certified by a licensed backflow tester at installation and annually thereafter. It carries USC FCCCHR approval, which many jurisdictions accept as their sole approval list.
- What shutoff valves are included?
- It is supplied with quarter-turn ball valves on the inlet and outlet.
- Does the relief valve need a drain?
- Yes. An RPZ relief valve is designed to discharge, and it can dump a large volume of water, so it must never be installed in a pit or below grade and the discharge must be piped to an adequate drain through an air gap. The air gap fitting is not included with this model and is ordered separately.
Specifications
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Type: Reduced Pressure Principle Assembly with Union Ball Valves
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Size: 3/4"
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Connection: FNPT
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Body Material: Bronze
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Max Pressure (psi): 175
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Application: Irrigation
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Backflow Protection: Both
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MPN: 34-975XL2U
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Temperature: up to 180°F
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Certifications: ASSE-1013, AWWA-C511, CSA, USC, NSF-61, NSF-372, IAPMO
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Lead-Free: Yes
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Assembly Type: RPZ
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Hazard Protection Level: High Health Hazard
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ASSE Standard: ASSE 1013
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USC FCCCHR Approved: Yes
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Field Testable: Yes
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Number of Test Cocks: 4
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Shutoff Valves: Quarter-Turn Ball
