Equipment Guide · Cargo Oil Pump
Not how the cargo reaches shore — how the machine itself works. A cargo oil pump is a centrifugal pump: a spinning impeller inside a spiral volute casing that turns rotation into pressure. Tap a step or press "Play" to watch the impeller spin the oil up to working pressure — and see why it loses its grip once the tank runs dry.
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Find the settings that keep her pumping — and see what breaks her.
Discharge tops out near 11.5 bar — the pump's max-head ceiling from Step 4. Suction can swing negative: that is the danger zone where she cavitates.
She starts in the sweet spot — press Start, then run the tank down or shut the discharge valve to make her cavitate.
Working principle — explained in our own plain words with our own schematic from general marine knowledge (not copied from any OEM manual). Conceptual; varies by ship/model. Reviewed and verified by a Master Mariner.