C.I.B. UNIGAS
- M03956CR
14
*
Note: the high gas pressure switch can be mounted either upstream the gas valve or downstream the gas valves but upstream the but-
terfly gas valve.
Assembling the gas grain
Fig. 5 - Example of gas train
To mount the gas train, proceed as follows:
1-a)in case of threaded joints: use proper seals according to the gas used;
1-b)in case of flanged joints: place a gasket (no. 1A..1E - Fig. 5) between the elements
2)
fasten all the items by means of screws, according to the next diagrams, observing the mounting direction for each item.
NOTE:
the bellow joint, the manual valve and the gaskets are not part of the standard supply.
DN65 - DN80: Gas train with valves group MBC (2 pressure governor) + VPS504 gas proving system
Key
1 Burner
2 Butterfly valve
3 Gas proving system (option)
4 Maximum gas pressure switch (option*)
5 Minimum gas pressure switch
6 Gas filter
7 Bellow joint
8 Manual valve
9 MB-DLE Valves group
10 VGD Valves group
18 Valves group MBC (2”, provided with filter)
19 Valves group MBC (an external filter must be installed)
ATTENTION:
once the gas train is mounted according to the diagram (Fig. 5), the gas proving test mus be performed,
according to the procedure set by the laws in force.
ATTENTION:
it is recommended to mount filter and gas valves to avoid that extraneous material drops inside the valves,
during maintenance and cleaning operation of the filters (both the filters outside the valves group and the ones built-in the
gas valves).
1
2
3
4
7
8
5
6
19
4
MANUFACTURER
INSTALLER
1A
5
1B
4
1C
2
1D
1E
3
Keys
1A..1E Gasket
2 Gas filter
3 Gas valves group
4 Bellows unitt
5 Manual valve
”direction” arrows for installation
gas supply network
