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Siemens VGD20.. e VGD40..
Components and position of pressure switches
SKP25
SKP15
5
4
7
3
Connection of actuator SKP2... to gas train
min. 5 Ø
Siemens SKP2.. (pressure governor)
- Connect the reference gas pipe (TP in figure; 8mm-external size pipe supplied loose), to the gas pressure nipples placed on the gas
pipe, downstream the gas valves: gas pressure must be measured at a distance that must be at least 5 times the pipe size.
- Leave the blowhole free (SA in figure). Should the spring fitted not permit satisfactory regulation, ask one of our service centres for a
suitable replacement.
- D: pressure adjustment spring seat
WARNING: removing the four screws BS causes the device to be unserviceable!
version with SKP2 (built-in pressure stabilizer)Siemens VGD../VRD.. SKPx5 (Auxiliary-optional micro
switch)Gas valve
If the auxiliary microswitch (POC) is required, a dedicated actuator, different from the one usually supplied, must be ordered. The con-
nection is shown in the figure.
Valve
AG
drive
A64
SKP25
6
5
4
2
1
8
Ø
Valve
drive
A65
PART III: INSTALLATION
1
PGMIN minimum gas pressure switch
2
PGMIN minimum gas pressure switch (alternative
SKP15
6
to 1)
3
PGCP leakage control gas pressure switch
3
4
PGMAX maximum gas pressure switch
2
5
Actuator with integrated pressure stabiliser
6
On-Off actuator
7
Valve body (Threaded)
8
Valve body (Flange)
1
AGA64 - Valve drivePlug connection ON-OFF
AGA65 - End of strokePlug connection POC
AG
End of stroke (POC)
The connection plug of the POC is different from that of the ON-OFF
drive
20
TP
SA
BS
D
SKP2
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