Wärtsilä 31DF MDF Automatic Fuel Oil Filter (1F04)

Sources:
  • Wärtsilä 31DF Product Guide, DBAE248994, Section 6.4.5.4, pp. 6-29–6-30

The Wärtsilä 31DF MDF Automatic Fuel Oil Filter (1F04) is identified in the Wärtsilä 31DF Product Guide as the automatic filter in the marine diesel fuel oil system.

Technical Data

  • OEM Number: —
  • MPN: —
  • Filter Media: —
  • Micron Rating: 6 µm
  • Engine Family: Wärtsilä 31DF
  • Filter Type: Automatic Fuel Filter

Compatible Engines

Application Notes

The Wärtsilä 31DF Product Guide specifies an automatic filter fineness of 6 µm absolute mesh size, β20 = 75, according to ISO 16889. It is recommended to select an automatic filter with a manually cleaned filter in the bypass line. The coarser bypass filter is intended only for temporary use while the automatic filter is being maintained.

Additional Notes

Maximum permitted pressure drop at 14 cSt: 20 kPa (0.2 bar) for a clean filter and 80 kPa (0.8 bar) at the alarm limit.

The Wärtsilä 31DF MDF Automatic Fuel Oil Filter (1F04) is part of the MDF fuel oil system in Wärtsilä 31DF engines. The Wärtsilä 31DF Product Guide specifies an absolute mesh size of 6 µm, with a filtration ratio of β20 = 75 according to ISO 16889.

The guide recommends a manually cleaned filter in the bypass line. This coarser bypass filter is intended only for temporary use while the automatic filter is being maintained.

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