Solenoid Valve with Manual Operator Solenoid Valve with Manual Operator Valve Ways and Positions 4-Way/2-Position 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 125 psi Max Operating Pressure Differential Light Oil 100 psi Max Operating Pressure Differential Water 100 psi Indoor Outdoor Voltage 120VAC Coefficient of Volume 0.70 Body Material - Valves Brass