Fuel Gas Solenoid Valve with Test Port Fuel Gas Solenoid Valve with Test Port 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 2 psi Max Operating Pressure Differential Water 2 psi Indoor Outdoor Voltage 120VAC Coefficient of Volume 5.4 Body Material - Valves Aluminum Coil Insulation Class F Seal Material - Valves NBR