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The working principle of a water pump varies by type.

Apr 23,2025

The working principle of a water pump varies by type.

Volumetric pump: It uses the periodic change of the working chamber volume to transfer energy, thereby achieving the transportation of liquids.
Blade pump: It relies on rotating blades to transfer mechanical energy to the fluid. Common types include centrifugal, axial, and mixed flow pumps. Among them, the working principle of a centrifugal pump is that under the action of the centrifugal force generated by the high-speed rotation of the impeller, the liquid is thrown outward and pressed into the volute, creating a vacuum, allowing water from the pool to be drawn in through the suction pipe under the external atmospheric pressure, thus continuously sucking and pressurizing water; the axial flow pump uses the thrust generated by the high-speed rotation of the impeller to lift water; the working principle of the mixed flow pump combines centrifugal force and lift.

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There are various types of water pumps based on different classification standards.

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