Solenoid Valve Less Coil Solenoid Valve Less Coil 2-Way Normally Closed Media - Valves Air Steam Water Pipe Size - Valves 1/8 In. Min Operating Pressure Differential 0 psi Max Operating Pressure Differential Air/Inert Gas 500 psi Max Operating Pressure Differential Light Oil 500 psi Max Operating Pressure Differential Water 500 psi Environmental Rating - Valves Indoor Outdoor Coefficient of Volume 0.05 Body Material - Valves Brass Seal Material - Valves Buna-N