A centrifugal pump is a mechanical device designed to move a fluid by transmitting rotational energy from one or more driven rotors (referred to as impellers). The fluid enters the rapidly rotating impeller along its axis and flows out along its circumference by centrifugal force. The centrifugal pump casing is specifically designed to shrink the fluid from the pump inlet, which is the impeller, and then slowly control the fluid before it is discharged.
A series of curved leaves of the yesellers. These are usually sandwiched between two discs (closed impellers). For fluids with entrained solids, open or semi-open impellers (supported by a single disc)
In some of the latter, centrifugal pumps are typically specified for higher flow rates and for pumping lower viscosity liquids down to 0.1 cP. In some chemical plants, 90% of the pumps will be centrifugal pumps in use. However, there are many applications in which a positive displacement pump is preferred.
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