Siemens VGD20.253U Double Gas Valve Body - 1" NPT application_combustion_control 255A21 is a robust damper

255A21 is a robust damper actuator designed for large-scale HVAC systems

Pulse Output: Equipped with a low-frequency pulse output for remote data transmission to systems like Building Management Systems (BMS)

this flame detectors can be mounted either directly on the burner

and applications requiring enhanced electrical isolation and safety standards

Reduced Bore

Siemens VGD20.253U Double Gas Valve Body - 1" NPT application_combustion_control 255A21 is a robust damperSiemens VGD20. 253U Double gas valve 1 NPT" The Siemens VGD 20 253U is designed as a double gas valve to be integrated into gas trains. A universal mounting plate facilitates attachment of a number of commercially available pressure switches or valves proving devices. Both the pilot gas flange and the universal mounting plate are exchangeable and can be fitted on either side of the valve. VGD20. 253U Gas Valve Specifications 1" NPT Max Pressure: 20psi