Unigas P20, Installation, Operation And Maintanance Manual

Page: 15 / 52

PART I: INSTALLATION 15
GAS TRAIN INSTALLATION DIAGRAMS
In Fig. 26a, Fig. 26b and Fig. 26c are shown the diagrams with the gas train components wich are included in the delivery and
those wich must be fitted by the customer. The diagrams complies with regulations in force.
Burner equipped with 2 gas val-
ves, governor with filter and pres-
sure switch.
Fig. 26a
Burner equipped with DUNGS
MBDLE valves group (2
go pressure
switch).
Fig. 26b
Burner equipped with 2 gas val-
ves, one of which is equipped with
pressure governor, gas filter and
pressure switch.
Fig. 26c
Key
1 Burner
2 Gas valve EV2
3 Gas valve EV1
4 Minimum gas pressure switch
5 Governor with filter
6 Manually operated shut-off valve
7 Bellow joint
8 Leakage control (optional if output is greater than 1200 kW)
9 Multibloc gas valves group
10 Gas valve EV2 with governor
11 Gas filter
1 2 8 3 5 7 6 4
MANUFACTURER CUSTOMER
7 6
1 9 8
7 6 1 10 8 3 4 11