Zurn 34-710 3/4" Pressure Vacuum Breaker Assembly (3/4" & 1"), Bronze, FNPT

The Zurn Wilkins 34-710 is a 3/4" pressure vacuum breaker with FNPT connections, approved for high health hazard protection. It features a bronze body. Rated to 150 psi and up to 140°F.

The 710 Pressure Vacuum Breaker Assembly protects against backsiphonage of contaminated water into the potable water supply where a potential high health hazard exists. With fewer parts and a lightweight, compact body, the Wilkins 710 Pressure Vacuum Breaker Assembly is a low-maintenance, cost-effective solution for high-hazard irrigation applications – commercial or residential. It also features a maximum pressure of 150 psi and a temperature range of 33°F to 140°F. The 710 is available in 3/4" and 1" sizes and is more compact than any competitor valve in the marketplace. Bring effortless performance to any residential and commercial irrigation systems.

Features

• Economical and durable with a lightweight, compact body
• Compact size is ideal for space limited applications
• Corrosion resistant valve and stainless steel shutoff handles for durability
• Protects against backsiphonage where a potential high health hazard exists.
• cUPC listed; ASSE® Listed 1020
• Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
• Universal low-cost repair kits work in both 3/4 in. and 1 in. assemblies

Common Questions

What hazard level is this PVB approved for?

It is rated for high health hazard (toxic) cross-connections, but only against backsiphonage. The assembly is listed to ASSE 1020.

Does this assembly have to be tested every year?

Yes. This is a field-testable assembly. 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.

Will this protect against backpressure?

No. A pressure vacuum breaker protects against backsiphonage only. It will not stop backflow caused by backpressure -- a downstream pump, elevated piping or a boiler -- which requires a double check or RPZ assembly instead.

How does this have to be installed?

It must be installed vertically (upright), above the highest downstream outlet, per its installation instructions and ASSE listing.

Specifications

• Type: Pressure Vacuum Breaker Assembly (3/4" & 1")
• Size: 3/4"
• Connection: FNPT
• Body Material: Bronze
• Max Pressure (psi): 150
• Application: Irrigation
• Backflow Protection: Backsiphonage
• MPN: 34-710
• Temperature: up to 140°F
• Certifications: ASSE-1020, USC, IAPMO
• Assembly Type: PVB
• Hazard Protection Level: High Health Hazard
• ASSE Standard: ASSE 1020
• USC FCCCHR Approved: Yes
• Field Testable: Yes
• Approved Orientation: Vertical