C.I.B. UNIGAS
- M039213CB
17
MULTIBLOCDUNGS MBC1900-3100-5000SE (Flanged valves group
)
Siemens VGD20.. and VGD40.. gas valves - with SKP2.. (pressure governor)
Mounting
When mounting the VGD.. double gas valve, two flanges are required (as for VGD20.. model, the flanges are threaded);
to prevent cuttings from falling inside the valve, first fit the flanges to the piping and then clean the associated parts;
install the valve;
the direction of gas flow must be in accordance with the direction of the arrow on the valve body;
ensure that the bolts on the flanges are properly tightened;
ensure that the connections with all components are tight;
make certain that the O-rings and gaskets between the flanges and the double gas valve are fitted.
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.
Caution:
the SKP2 diaphragm
D
must be vertical (see Fig. 11).
WARNING: removing the four screws BS causes the device to be unserviceable!
Mounting
1. Insert setscrews A
2. Insert seals
3. Insert setscrews B
4. Tighten setscrews A + B.
Ensure correct seating of the seal!
6. After installation, perform leakage and functional test.
7. Disassembly in reverse order.
Fig. 8
Fig. 9
Fig. 10
Fig. 11
SIEMENS VGD..MOUNTING
POSITIONS
Fig. 12
Mounting positions
OPTION
10 = pulse lines
njo/!6!y!EO
EO
2
22
21
"
#
#
"
#
#
"
"
BS
BS
SKP1.
SKP2.
BS
BS
SA
TP
D
7631z05/0101
Summary of Contents for HR93A
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