The Siemens Combustion VGD20.323U Double Gas Valve Body is a safety component designed for commercial and industrial gas-fired burners, boilers, and heating equipment. It features two valves arranged in series and operates with compatible Siemens SKP electro-hydraulic actuators to control gas flow and provide reliable safety shutoff. Its robust design supports dependable burner operat... https://www.partshnc.com/siemens-combustion-vgd20-323u-1-25-npt-double-gas-valve-body