Solenoid Valve Solenoid Valve Valve Ways and Positions 2-Way/2-Position Normally Open Media - Valves Air Inert Gases Light Oil Water Pipe Size - Valves 1/4 In. Min Operating Pressure Differential 0 psi Max Operating Pressure Differential Air/Inert Gas 275 psi Max Operating Pressure Differential Light Oil 180 psi Max Operating Pressure Differential Water 230 psi Indoor Outdoor Voltage 120VAC Coefficient of Volume 0.21 Body Material - Valves Brass Coil Insulation Class H