FB715D, Febco, 3/4 IN Bronze Atmospheric Vacuum Breaker Backflow Preventer

This 3/4 inch atmospheric vacuum breaker backflow preventer assures positive protection against backsiphonage of impure water from getting into the main supply in the event that pressure loss causes vacuum conditions. It is ideal for hose bibs, chemical vats, X-ray tanks, turf irrigation systems, and laboratory sinks. It features a bronze body and lightweight plastic poppets. The maximum working pressure is 150 psi (10.3 bar) and the working pressure withstands water temperatures of 32 to 180 degrees F (zero to 82 degrees C).