Ballast Pump · Pumps
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| Running condition check (vibration, leakage, temperature) | each ballasting operation or per the vessel's PMS rounds |
|---|---|
| Mechanical seal or packing inspection/renewal | annually, or sooner if leakage exceeds allowable drip rate |
| Bearing inspection/renewal | typically every 2-4 years depending on running hours - confirm against Iron Pump's manual and running hours |
| Impeller/wear ring clearance check | at each major overhaul, typically every 4-5 years for this duty |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Impeller-to-casing wear ring radial clearance | typically 0.3-0.6 mm for centrifugal pumps in this size class when new, condemn well before double the new clearance - confirm against the manufacturer's manual |
|---|---|
| Mechanical seal face wear | renew at first sign of visible scoring or when leakage exceeds the allowable drip rate stated in the pump manual |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Ballast pumps are normally part of the vessel's essential auxiliary machinery survey scope. Surveyors expect evidence of periodic performance testing and PMS records, and for the pump to be demonstrated operable at survey where ballast system integrity is being examined.
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