Solenoid Valve Valve Ways 2-Way Valve Starting Configuration Normally Closed Valve Type High Flow Nominal Pipe Size 1 1/4 in Orifice Diameter 1 5/8 in Body Material Aluminum Coefficient of Volume (Cv) 32 Operating Pressure Differential Air/Inert Gas - Maximum 25 psi Operating Pressure Differential Fuel Gas - Maximum Not Applicable Seal Material NBR Voltage 12V DC Operating Pressure Differential Fuel Oil - Maximum Not Applicable