Siemens Double Gas Valves VGD20 VGD40 VGD41 Series
VGD20 / VGD40 / VGD41 Biogas Double-Valve Bodies
The VGD series (VGD20, VGD40, VGD41) are biogas double-valve bodies, consisting of two safety shut-off valves in series. Designed for use in industrial combustion systems, these valves are combined with SKP actuators to provide versatile flow control and safety functions.
Available Models
| VGD20 Model | VGD40 Model | VGD41 Model |
| VGD20.403 | VGD40.040 | VGD41.040 |
| VGD20.503 | VGD40.050 | VGD41.050 |
| VGD40.065 | VGD41.065 | |
| VGD40.080 | VGD41.080 | |
| VGD40.100 | VGD41.100 | |
| VGD40.125 | VGD41.125 | |
| VGD40.150 | VGD41.150 |
Key Functions (with SKP Actuators)
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With SKP15 → Gas safety shut-off
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With SKP25 → Gas safety shut-off + constant pressure regulation
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With SKP55 / SKP75 → Gas safety shut-off + constant pressure regulation + air/gas ratio control
Enquiry about Siemens Double Gas Valves VGD20 VGD40 VGD41 Series


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