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The fuel-air ratio can be set either via an air damper actuator - acting on mechanical or pneumatic ratio control - or via pulse width modulated fans and pneumatic ratio control
Supply Voltage: With Transformer 110v AC / 24v AC
3 230v Control Box:
Sensitivity: 1
Possible Flange Sizes: Rp 1" or Rp 1 1/4"
Siemens VGD40.080 DN80 Double Gas Valve VGG The fuel-air ratio can beSiemens VGD40. 080 Double gas valve, DN80 Air flow rate (m3 h) at ^p = 1 kPa 250 kPa Siemens Part Number: BPZ: VGD40. 080 Compact VGD40. 080 double valve bodies consist of 2 safety shut off valves in series Each individual safety shut off valve has double seats to achieve high flow Patented seat construction with individual closing spring for each seat to assure reliable shut off and high close off pressure rating Full port vent line connection plates