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SKP1.
SA
SKP2.
*
*
= BS
*
*
*
*
*
Siemens VGD... con SKPx Example of gas train
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.
*
SA
D
*
PGMAX
PGCP
PGMIN
Gas filter
VR
neutral
yellow
0 ÷ 22
15 ÷ 120
100 ÷ 250
7 ÷ 700
150 ÷ 1500
N
L
1
3
2
1
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.
Valve drive
Plug connection
2
(only with SKPxx.xx1xx)
3
A Valve closed
19
PART II: INSTALLATION
SIEMENS VGD..
Mounting positions
TP
End of stroke
Plug connection
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