Wartsila 46F - Page 81

Total consumption of the connected engines added with
the flush quantity of the automatic filter (1F08) and 15%
margin.
Capacity
1.6 MPa (16 bar)Design pressure
0.7 MPa (7 bar)Max. total pressure (safety valve)
100°CDesign temperature
1000 cStViscosity for dimensioning of electric motor
Pressure control valve, booster unit (1V03)
The pressure control valve in the feeder/booster unit maintains the pressure in the de-aeration
tank by directing the surplus flow to the suction side of the feed pump.
Design data:
Equal to feed pumpCapacity
1.6 MPa (16 bar)Design pressure
100°CDesign temperature
0.3...0.5 MPa (3...5 bar)Set-point
Automatic filter, booster unit (1F08)
It is recommended to select an automatic filter with a manually cleaned filter in the bypass
line. The automatic filter must be installed before the heater, between the feed pump and the
de-aeration tank, and it should be equipped with a heating jacket. Overheating (temperature
exceeding 100°C) is however to be prevented, and it must be possible to switch off the heating
for operation on MDF.
Design data:
According to fuel specificationFuel viscosity
100°CDesign temperature
If fuel viscosity is higher than 25 cSt/100°CPreheating
Equal to feed pump capacityDesign flow
1.6 MPa (16 bar)Design pressure
Fineness:
35 μm (absolute); 20 μm ß20=10, ISO16889- automatic filter
35 μm (mesh size)- by-pass filter
Maximum permitted pressure drops at 14 cSt:
20 kPa (0.2 bar)- clean filter
80 kPa (0.8 bar)- alarm
Flow meter, booster unit (1I01)
If a fuel consumption meter is required, it should be fitted between the feed pumps and the
de-aeration tank. When it is desired to monitor the fuel consumption of individual engines in
DAAB605814 6-25
6. Fuel Oil SystemWärtsilä 46F Product Guide