Siemens VGD20.403 gas valve

Siemens VGD20.403 double gas valve is designed for use on gas heat generators and gas units in combination with forced draught gas burners. Version Siemens VGD20.403 2-way with threaded connection, normally closed type, diameter 1 1/2", inlet pressure up to 150 kPa. The double seat valve design allows one valve to be used for gas supply control and pressure regulation instead of two separate valves. VGD valves are designed for use with two SKP... series actuators, which open slowly and close quickly. A distinctive feature of the double gas valve design is that the SKP... actuator can be mounted or replaced while the valve is under pressure.