Zurn Wilkins 112-720A 1-1/2" 720A Pressure Vacuum Breaker Assembly

Our Pressure Vacuum Breaker protects against back siphonage in high health hazard, non-potable residential and commercial irrigation applications. The 720A assembly includes an approved check valve, vacuum relief, two test cocks, and inlet and outlet full port resilient seated shut-off valves. This pressure vacuum breaker features a maximum pressure of 150 psi and a temperature range of 33°F to 110°F. The PVB’s corrosion-resistant internal parts and all bronze bonnet and body construction provides added strength and protection against the elements and light freezes. The test cocks located on the center line of valve allow for installation versatility. Upgrade to the Wilkins 720A Pressure Vacuum Breaker today and experience the reliability it brings to your irrigation system

• Serial number visible in any installed orientation reduces labor time
• Test cocks on center line of valve allow for installation versatility
• Consistent, reliable performance provides world class backsiphonage protection
• Construction offers corrosion-resistance, strength and winterization protection
• ASSE, IAPMO, CSA listed
• Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California

Typical Installation Local codes shall govern installation requirements. Unless otherwise specified, the assembly shall be mounted at a minimum of 12" (305mm) above the highest piping or outlet downstream of the device. Install with adequate drain and sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be submerged. A pressure vacuum breaker cannot be installed where back-pressure could occur or where spillage of water from vent could cause damage. 

The Pressure Vacuum Breaker shall be ASSE 1020 approved, and supplied with full port ball valves. The main body and bonnet shall be bronze (ASTM B584), the loaded-air inlet shall use an silicone elastomer spring and seat disc. The entire assembly shall be accessible for maintenance and testing without removing the device from the line. For non-potable applications only. The Pressure Vacuum Breaker shall be a Zurn Wilkins Model 720A.