Fuel Oil Separator · Separators & Purifiers
Alfa Laval Fuel Oil Treatment. The Alfa Laval Fuel Conditioning Module is a two-stage automated pressure booster system that conditions marine diesel fuel (HFO, MDO, MGO as well as alternative fuels such as methanol, LPG, ammonia and LNG). The system controls cleanliness, pressure, temperature, viscosity and flow to the ship engine manufacturer's specifications.
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| Duplex filter cleaning | as-needed on DP alarm, weekly baseline check |
|---|---|
| Circulation/booster pump mechanical seal | inspect around 4,000h, typically renewed 8,000-12,000h in HFO service |
| Heater element inspection/descaling | roughly every 4,000-6,000h or per manufacturer manual |
| Viscosity/pressure transmitter calibration | annually |
| Safety valve function test | annually or per class requirement |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Circulation/booster pump mechanical seal | renew on visible leakage or per the pump manufacturer's limit - no generic dimensional figure applies, follow the module manual |
|---|---|
| Duplex filter differential pressure | clean/renew element once DP approaches the module's alarm set point, typically in the 0.5-1.0 bar range for this class of unit - confirm against the nameplate |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Normally within Continuous Survey Machinery scope for fuel oil systems; surveyors typically check overpressure/overtemperature trip function, the module's drip-tray leak alarm, and that filter/pump maintenance records match the planned maintenance system.
Estimated lifetime: Module frame and piping typically give 20-25+ years of service; pumps, heater and seals are consumables replaced on the intervals above rather than defining an overall hour-based life - confirm against Alfa Laval documentation.
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