Siemens VGD20.403U gas valve

Siemens VGD20.403U gas valve — double solenoid valve DN40 for gas burners and boilers. Maximum safety and reliable gas shut-off in gas systems. Siemens VGD20.403U is a high-quality double (two-stage) gas valve of the VGD20 series, designed for integration into gas burners, boilers, and heat generators. It combines two safety shut-off valves in one compact housing, providing the highest level of safety and stable operation of gas equipment. The valve is ideal for industrial and commercial heating systems operating on natural gas, liquefied gas, and other gas mixtures. German Siemens quality guarantees compliance with strict EN 161 standards and long-term trouble-free operation. Main technical specifications: Valve type: Double gas solenoid valve (two valves in one housing); Nominal diameter: DN40 (1½"); Flow capacity: up to 85 m³/h (at Δp = 1 kPa); Working pressure: 0…500 mbar (up to 0.5 bar); Connection: Flanged/threaded (separate flanges AGF10.xxU required); Housing material: Corrosion-resistant aluminum; Ambient temperature: -15°C to +60°C; Gases: Natural gas, liquefied gas, town gas, air; Functions: Double gas shut-off (V1 + V2), adjustable in combination with SKP actuators; Additional: Built-in mesh filter, threaded ports for connection. Advantages of Siemens VGD20.403U: Enhanced safety — double gas shut-off minimizes risk of leaks and accidents. Compact design — two valves in one housing simplify gas line installation. High flow capacity — efficient operation with large gas flows. Reliability — proven Siemens design with long service life. Versatility — ideal for