Solenoid Valve Valve Ways 2-Way Valve Starting Configuration Normally Open Valve Type High Flow Nominal Pipe Size 1 1/2 in Orifice Diameter 1 5/8 in Body Material Aluminum Coefficient of Volume (Cv) 37 Operating Pressure Differential Air/Inert Gas - Maximum 25 psi Operating Pressure Differential Fuel Gas - Maximum 25 psi Seal Material NBR Voltage 110V AC 120V AC Operating Pressure Differential Fuel Oil - Maximum Not Applicable