Fuel Gas Solenoid Valve Fuel Gas Solenoid Valve 2-Way/2-Position Normally Closed Media - Valves Fuel Gas Pipe Size - Valves 1/2 In. Min Operating Pressure Differential 0 psi Max Operating Pressure Differential Air/Inert Gas 8 psi Max Operating Pressure Differential Water 8 psi Indoor Outdoor Voltage 120VAC Coefficient of Volume 2.8 Body Material - Valves Brass Coil Insulation Class F Seal Material - Valves NBR Max Operating Pressure Differential 8 psi Orifice Dia 7/16 In.