CIB UNIGAS HR1025, Manual, Page: 24 / 55

PART II: INSTALLATION
24
Siemens VGD valves with SKP actuator :
The pressure adjusting range, upstream the gas valves group, changes according to the spring provided with the valve group.
Once the gas train in installed, execute the electrical connections for all its items (gas valves group, gas proving system, pressure
switches).
3.3 Gas Filter (if provided)
The gas filters remove the dust particles that are present in the gas, and prevent the elements at risk (e.g.: burner valves, counters and
regulators) from becoming rapidly blocked. The filter is normally installed upstream from all the control and on-off devices.
Fig. 9
Fig. 10
Fig. 11
Performance range (mbar) 0 - 22 15 - 120 100 - 250
Spring colour neutral yellow red
ATTENTION: it is reccomended to install the filter with gas flow parallel to the floor in order to prevent dust fall
on the safety valve during maintenance operation.
BS
BS
SKP1. SKP2.
BS
BS
SA
SA
TP
D
7631z05/0101
SIEMENS VGD..MOUNTING
POSITIONS
2
(cap)
1
(spring)
Fig. 12