Air Operated Valve Pipe Size 1 in Valve Design 2-Way Valve Configuration Normally Closed Orifice Dia 1 in Coefficient of Volume 12 Min Operating Pressure Differential 0 psi Max Operating Pressure Differential 300 psi Max Fluid Temp 180 Degrees F Air Inlet 1/4 in FNPT Inlet Pressure Up to 250 psi Body Material Brass Gasket Material Buna-N Seat Material 303 Stainless Steel Center Line Pipe Center Size 3 1/2 in Overall Length 3 1/2 in Overall Width 5 7/8 in