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PART II: INSTALLATION
SA
*
= BS
*
*
*
*
*
*
SKP1.
version with SKP2 (built-in pressure stabilizer)
T
Performance range (mbar)
Spring colour SKP 25.0
Spring colour SKP 25.4
Siemens VGD SKPx5 (Auxiliary-optional micro switch)
Actuator connection
Gas valveGas 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.
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.
Once the train is installed, connect the gas valves group and pressure switches plugs.
*
SA
D
*
SKP2.
VR
neutral
yellow
0 ÷ 22
15 ÷ 120
100 ÷ 250
7 ÷ 700
150 ÷ 1500
N
TP
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.
To replace the spring supplied with the valve group, proceed as fol-
lows:
- Remove the cap (T)
- Unscrew the adjusting screw (VR) with a screwdriver
- Replace the spring
red
Stick the adhesive label for spring identification on the type plate.
L
1
2
3
3
2
1
18
SIEMENS VGD..
Mounting positions
Valve drive
End of stroke
Plug connection
Plug connection
(only with SKPxx.xx1xx)
A Valve closed
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