Siemens VGD20.503U gas valve

Siemens VGD20.503U gas valve — double solenoid valve DN50 (2") for gas burners and boilers. Maximum safety and high flow capacity in gas systems. Siemens VGD20.503U is a powerful double (two-stage) gas valve of the VGD20 series, designed for safe gas supply control in industrial and commercial gas burners, boilers, and heat generators. With a nominal diameter of DN50 (2") and high flow capacity, it is ideal for medium and large capacity systems. The valve consists of two safety shut-off valves in one compact housing, providing double gas shut-off and the highest level of safety in accordance with EN 161 standards. Main technical specifications: Valve type: Double gas solenoid valve (two valves in one housing); Nominal diameter: DN50 (2"); Flow capacity: up to 2300 m³/h (air at Δp = 1 kPa); Working pressure: 0…500 mbar (up to 0.5 bar); Connection: Flanged (separate flanges AGF10.50U required); Housing material: Corrosion-resistant aluminum; Ambient temperature: -15°C to +60°C; Gases: Natural gas, liquefied gas (propane-butane), town gas, air; Functions: Double shut-off (V1 + V2), compatible with SKPxx.xxxU actuators (including modulating); Additional: 1" NPT vent connection between valves, threaded ports for pressure monitoring. Advantages of Siemens VGD20.503U: Enhanced safety — double gas shut-off minimizes risk of leaks and emergency situations. High performance — excellent flow capacity for large capacity systems. Compact and reliable design — two valves in one housing simplify gas line installation. Versatility — suitable for most industrial gas burners and boilers. Long