Separator/Purifier · Separators & Purifiers
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| Disc stack cleaning | typically every 2000-4000 hours, or sooner depending on fuel/oil quality and fouling rate |
|---|---|
| Bowl gasket / O-ring renewal | at every bowl opening, or at least annually |
| Gear unit / friction drive oil change | per maker's schedule, typically every 4000-8000 hours or annually |
| Bowl spindle bearing renewal | typically every 8000-16000 hours at major overhaul - confirm against the maker's manual |
| Major overhaul (bearings, seals, gears) | typically every 2 years, or per the maker's PMS running-hour interval |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Bowl spindle bearing renewal | condition- and running-hour based per the maker's manual rather than a fixed clearance figure - confirm against the maker's schedule |
|---|---|
| Friction pad thickness (if friction drive fitted) | renew before wear reaches the backing plate - confirm minimum thickness against the maker's manual |
| Disc stack condition | renew discs showing visible pitting, distortion or corrosion; no universal numeric limit |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Fuel oil and lube oil separators are typically covered under Continuous Survey Machinery. Class looks for evidence of overhaul per the maker's PMS, correct bowl assembly/torque records, and confirmation that casing containment and safety interlocks are intact, given the stored rotational energy in the bowl during operation.
Estimated lifetime: Disc-stack separators of this capacity class typically run 8,000-16,000 hours between major bowl/bearing overhauls, with the bowl and drive unit remaining in service for the vessel's life subject to periodic overhaul
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