Steam Solenoid Valve Less Coil Steam 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 100 psi Max Operating Pressure Differential Light Oil 100 psi Max Operating Pressure Differential Water 100 psi Environmental Rating - Valves Indoor Outdoor Coefficient of Volume 0.48 Body Material - Valves Brass Orifice Dia 5/32 In.