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Priming fills the pump casing and suction line with liquid so the impeller can build pressure; a centrifugal pump cannot move air. Depending on suction

Seal face material is chosen by the liquid, temperature, pressure and abrasiveness of the service, not by catalogue habit. Carbon against silicon carbide covers most

Replacing a mechanical seal is a workshop-level job: isolate and drain the pump, remove the back pull-out assembly, record the seal setting dimension, clean the

Mechanical seals for centrifugal pumps fall into a few families: single seals (pusher or bellows type), double and tandem arrangements for hazardous or poor-lubricity liquids,