Solenoid Valve Valve Ways and Positions 2-Way/2-Position Normally Closed 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 130 psi Max Operating Pressure Differential Light Oil 90 psi Max Operating Pressure Differential Water 110 psi Voltage 12VDC Coefficient of Volume 0.30 Body Material - Valves Brass Coil Insulation Class H Seal Material - Valves NBR