Steam Solenoid Valve Steam Solenoid Valve 2-Way/2-Position Normally Open Media - Valves Steam Pipe Size - Valves 1/2 In. Min Operating Pressure Differential 0 psi Max Operating Pressure Differential Steam 15 psi Environmental Rating - Valves Indoor Outdoor Voltage 120VAC Coefficient of Volume 4.50 Body Material - Valves Brass Coil Insulation Class H Orifice Dia 3/8 In. NEMA Rating 1 2 3 3S 4 4X Coil Enclosure Watertight No Junction Box