Question

Why can't centrifugal pumps pump air?

Answer 1

Answer:

A centrifugal pump cannot pump a gas; therefore, the differential pressure necessary for flow will not be created if the impeller is having air or vapour. Prior to start-up, the pump's Casing should be filled with liquid and vented of all gases. ... The pump can be connected through vents to a central priming system.

Explanation:

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Answer 2

Answer:

centrifugal pump cannot pump a gas; therefore, the differential pressure necessary for flow will not be created if the impeller is having air or vapour. Prior to start-up, the pump's Casing should be filled with liquid and vented of all gases. ... The pump can be connected through vents to a central priming system.