Unit components:
Solenoid valve
CV-V0#
Gas control valve
V06
Manual shut off valve
V01
Inerting valve
V07
Vent valve
V02
Sensors and indicators
Pressure transmitter, inert gas
P05
Pressure transmitter, gas inlet
P01
Pressure transmitter, control air
P06
Pressure manometer, gas inlet
P02
Pressure transmitter
P07
Pressure transmitter
P03
Temperature sensor, gas inlet
T01
Pressure transmitter, gas outlet
P04
Standard
Pressure class
Size
Pipe connections
ISO 7005-1
DN16
DN80
Gas inlet [5-10 bar(g)]
A1
ISO 7005-1
DN16
DN80
Optional gas inlet / Air inlet
A1'
ISO 7005-1
DN16
DN80
Gas outlet
B1
DIN 2353
DN16
G1/2 ' '
Inert gas [max 15 bar(g)]
B2
DIN 2353
DN16
Gas venting
D1
DIN 2353
G1/2 ' '
Instrument air [6-8 bar(g)]
X1
Figure 6.5
Main dimensions of the GVU (DAAF020519)
Master fuel gas valve
For LNG carriers, IMO IGC code requires a master gas fuel valve to be installed in the fuel gas feed system.
At least one master gas fuel valve is required, but it is recommended to apply one valve for each engine
compartment using fuel gas to enable independent operation.
It is always recommended to have one main shut-off valve directly outside the engine room and valve room
in any kind of installation.
Product Guide Wärtsilä 34DF - 3/2012
47
Product Guide
6. Fuel System