U.S. Plastic Corporation Hayward Air Release Valve 22467

Valves have a PVC body with PP ball. They provide reliable tank air venting and they prevent tank overflow. They have a hollow, floating ball design. It closes at 0 psi. It has a standard screen and it comes with both a socket and a threaded end connection. PVC meets Cell Class 12454 per ASTM D1784 and PP is per ASTM D4101. Maximum pressure rating is 150 psi @70F non-shock. One air release valve will vent a tank with flows of up to 150 GPM (either in or out). For higher flow rates use additional air release valves.