WÄRTSILÄ WARTSILA 26, Руководство по эксплуатации продукта

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Total consumption of the connected engines added with
the flush quantity of the automatic filter (1F08)
Capacity
1.6 MPa (16 bar) Design pressure
0.7 MPa (7 bar) Max. total pressure (safety valve)
100°C Design temperature
1000 cSt Viscosity 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 pump Capacity
1.6 MPa (16 bar) Design pressure
100°C Design 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 specification Fuel viscosity
100°C Design temperature
If fuel viscosity is higher than 25 cSt/100°C Preheating
Equal to feed pump capacity Design flow
1.6 MPa (16 bar) Design pressure
Fineness:
35
μ
m (absolute mesh size) - automatic filter
35
μ
m (absolute 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
a multiple engine installation, two flow meters per engine are to be installed: one in the feed
line and one in the return line of each engine.
Wärtsilä 26 Product Guide - a9 - 7 September 2016 6-25
6. Fuel Oil System Wärtsilä 26 Product Guide