Zurn 2-975XL Backflow Preventer - Reduced Pressure Principle Assembly, Non-Potable

The Zurn Wilkins 2-975XL is a 2" 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.

The 975XL Reduced Pressure Principle Backflow Preventer is used on non-potable water applications for high health hazard protection from both backsiphonage and backpressure of contaminated water into the potable water supply. The wye pattern design with short lay length eases installation in compact spaces, and the cast bronze body includes separate access to the relief valve and each check valve for reduced labor costs and repair time. The 975XL is favored by installers around the world, and is the simplest, best performing, and most reliable backflow preventer in the irrigation market today.

Features

• 975XL (3/4" - 2")
• Wye pattern design reduces installation time and costs
• A tried and true design favored by installers worldwide
• Easy access to the first check for debris removal reduces maintenance costs
• Entire unit serviceable in line
• ASSE® and IAPMO® listed
• UL Classified (less shut-off valves or with OS&Y valves) and C-UL Classified
• CSA® Certified
• AWWA compliant
• Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California

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.

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.

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 - Reduced Pressure Principle Assembly, Non-Potable
• Size: 2"
• Connection: FNPT
• Body Material: Bronze
• Max Pressure (psi): 175
• Application: Irrigation
• Backflow Protection: Both
• MPN: 2-975XL
• Temperature: up to 180°F
• Certifications: ASSE-1013, AWWA-C511, CSA-B64.4, C-UL, UL, USC, IAPMO
• 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