Water Pressure 150 psi, Pipe Size 4 in, Temp. 7 1/2 in, Lug Dia.Butterfly Valve, Wafer Style, Body Material PVC, Max. Butterfly Valve, 4", PVC/PP/Nitrile, Gear Operated 22/31 in, Standards ISO 5211, ASTM D1784 Cell Class 12454 (Body) ASTM D4101 Cell Class 85580.