OSD 18
The GEA Westfalia OSD 18 is a marine‑grade disc‑stack centrifugal fuel oil purifier that separates water, sediments and contaminants from fuel oil using a self‑cleaning bowl rotating at about 12 000 rpm.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Check polyamide gasket (B) seating parallel in groove via measurements around circumference; Inspect sliding piston sealing surface (A) for wear; Document if remachining is required (up to manufacturer spec)
Verify oil level in central oil bath; Check bearing splash lubrication system function; At 8,000h intervals: measure neck bearing spring lengths; Inspect for discoloration/degradation of lube oil; Motor bearings per manufacturer instruction
Inspect bowl lock ring, bowl bottom, bowl top for corrosion (flat-spread/pit/crack patterns); Check for mechanical damage in high-diameter outer sections; Under aggressive/high-temp operation: document erosion patterns; Requires bowl disassembly per 16,000-hour maintenance
Visually inspect flat belt for wear, fraying, cracks; Check centrifugal clutch engagement/disengagement function; Measure belt tension; Check all hydraulic system channels (holes/nozzles/chambers) for blockage; Clean hydraulic orifices during 16,000h service
After bowl removal: inspect pump impeller and casing for wear marks; Check all hydraulic flanges, valve glands for oil seepage; Pressure-test hydraulic lines if available; Review for signs of cavitation or blockage in sensing pump
Verify first service completion at 8,000h/1yr; Check documentation for 16,000h (2yr) and 48,000h (6yr) services; Under unfavorable conditions (aggressive feedstock, high temps, poor product quality): recommend shortened intervals; Replace vibration isolators after 48,000h
Type-general inspection and maintenance points for this equipment category — not model-specific.
Service & Maintenance
GEA Westfalia design. Clean disc stack every 4000 hrs. Replace O-rings at every opening. Bearing set at 16000 hrs.
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