Sewer Water Valves: Air Release And Vacuum Valves

A sewer Water valve consists of a cast iron body-stainless steel trim and threaded female x female connections with NITRILE (Buna-N) seat. Large orifice at top of sewer valve equals inlet size. Eliminates vacuum in waste water pipeline. Sizes range from 1 to 3 inches. Temp Max: 150° F (65 C). Pressure Max: 150 / 300 PSI (depending on Orifice size)