Zurn 34-975XL2SAG 3/4" Lead-Free Backflow Preventer - Bronze Reduced Pressure Principle Assembly

The Zurn Wilkins 34-975XL2SAG 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 975XL2 Reduced Pressure Principle Assembly is used in high health hazard, potable water applications for protection from both backsiphonage and backpressure of contaminated water into the potable water supply. The wye pattern, bronze body design provides separate access to each check valve and the relief valve to reduce labor costs and repair time. Its short lay length eases replacement costs and installation time. The 975XL2 includes all the necessary components for managing your system, and is the simplest, best, and most reliable backflow preventer in the market today.

Features

• 975XL2 (3/4" -2")
• Short lay length eases replacement and repair time
• Wye pattern design provides separate access to checks and relief valve for reduced labor costs
• Trusted and recognized favorite by installers worldwide
• Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
• Meets the requirements of NSF/ANSI 61
• ASSE® Listed, cUPC® Listed, CSA® Certified, AWWA Compliant, Safe Drinking Water Act Compliant
• We recommend the upgraded model 975XL3 for new construction

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.

Is this listed for fire protection service?

Yes -- it is UL Classified and C-UL Classified, the listings normally required for a backflow device on a fire sprinkler supply.

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

• Type: Backflow Preventer - Bronze Reduced Pressure Principle Assembly
• Size: 3/4"
• Connection: FNPT
• Body Material: Bronze
• Max Pressure (psi): 175
• Application: Domestic Water
• Backflow Protection: Both
• MPN: 34-975XL2SAG
• Temperature: up to 180°F
• Certifications: ASSE-1013, AWWA-C511, CSA-B64.4, C-UL, UL, USC, NSF-61, NSF-372, IAPMO
• Lead-Free: Yes
• Assembly Type: RPZ
• Hazard Protection Level: High Health Hazard
• ASSE Standard: ASSE 1013
• USC FCCCHR Approved: Yes
• Fire Protection Listing: UL Classified;C-UL Classified
• Field Testable: Yes
• Number of Test Cocks: 4
• Shutoff Valves: Quarter-Turn Ball