Zurn 34-950XLT 3/4" Double Check Backflow Preventer, Bronze, FNPT

The Zurn Wilkins 34-950XLT is a 3/4" double check valve assembly with FNPT connections, approved for low health hazard protection. It features a bronze body. Rated to 175 psi and up to 180°F.

The 950XLT Double Check Valve Assembly includes top access check covers for easy maintenance access, is utilized in low health hazard non-potable water applications, and is suitable for below grade installation in standard valve boxes. The 950XLT protects against both backsiphonage and backpressure while the test cock plug protects against fouling caused by insects, dirt, and debris. It includes corrosion-resistant stainless steel springs, fasteners, and ball valve handles. Features of the 950XLT include a maximum working water pressure of 175 psi, hydrostatic test pressure of 350 psi, and a maximum working water pressure of 180°F.

Features

• Top access double checks for hassle-free maintenance and repairs
• Seats and silicone seal rings are fully replaceable for reduced maintenance costs
• Fits within standard meter boxes
• Construction offers corrosion-resistance and winterization
• Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
• IAPMO® Listed
• AWWA Compliant

Common Questions

What hazard level is this Double Check approved for?

It is rated for low health hazard (non-toxic, "pollutant") cross-connections only. Where the downstream substance could be a health hazard, codes require a reduced pressure zone (RPZ) assembly or a detector assembly instead. The assembly is listed to ASSE 1015.

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.

Specifications

• Type: Double Check Backflow Preventer
• Size: 3/4"
• Connection: FNPT
• Body Material: Bronze
• Max Pressure (psi): 175
• Application: Domestic Water
• Backflow Protection: Both
• MPN: 34-950XLT
• Temperature: up to 180°F
• Certifications: ASSE-1015, AWWA-C510, CSA-B64.5, USC, IAPMO
• Assembly Type: Double Check
• Hazard Protection Level: Low Health Hazard
• ASSE Standard: ASSE 1015
• USC FCCCHR Approved: Yes
• Field Testable: Yes
• Number of Test Cocks: 4
• Shutoff Valves: Quarter-Turn Ball