LF800M4-QT 3/4 Inch Anti-Siphon Pressure Vacuum Breaker, Bronze

The Watts 0792011 3/4" Lead Free Anti-Siphon Pressure Vacuum Breaker Backflow Preventer is designed to prevent the reverse flow of contaminated water from entering the clean water supply system by backsiphonage. Featuring a durable bronze body construction, this device is equipped with a silicone rubber check valve disc, a plastic check valve seat, stainless steel springs, and a bonnet with a silicone rubber O-ring seal. It also includes a lightweight plastic disc float, tee handle shutoff, and test cocks for winterization draining.

This pressure vacuum breaker is particularly well-suited for use in health hazard continuous pressure applications such as irrigation systems and industrial process water systems. It is designed to be installed where the water enters the equipment at or below its flood rim. The maximum pressure rating for this device is 150 psi (10.3 bar), with a minimum pressure requirement of 15 psi (55 kPa).

Key features of this pressure vacuum breaker include a lead free bronze body construction, female NPT inlet and outlet with quarter turn shutoffs, a single access cover, and modular check construction for easy maintenance. The large body passages provide a low pressure drop, while the internal relief valve helps to reduce installation clearances.

For safe maintenance, the captured springs can be easily accessed, and the replaceable seats offer an economical repair solution. The test cocks are screwdriver slotted for easy turning, making testing and maintenance a breeze.

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