Steam Solenoid Valve Less Coil Steam Solenoid Valve Less Coil 2-Way Normally Closed Media - Valves Air Steam Water Pipe Size - Valves 1/2 In. Min Operating Pressure Differential 5 psi Max Operating Pressure Differential Light Oil 150 psi Max Operating Pressure Differential Water 150 psi Environmental Rating - Valves Indoor Outdoor Coefficient of Volume 3.50 Body Material - Valves Brass Seal Material - Valves PTFE Orifice Dia 1/2 In. Safe Working Water Pressure 300 psi