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Centrifugal
Pump
Tutorial

Centrifugal Pump

A centrifugal pump is one of the simplest pieces of equipment. Its purpose is to convert energy of an electric motor or engine into velocity or kinetic energy and then into pressure of a fluid that is being pumped. The energy changes occur into two main parts of the pump, the impeller and the volute. The impeller is the rotating part that converts driver energy into the kinetic energy. The volute is the stationary part that converts the kinetic energy into pressure.




Centrifugal Force

Liquid enters the pump suction and then the eye of the impeller. When the impeller rotates, it spins the liquid sitting in the cavities between the vanes outward and imparts centrifugal acceleration. As the liquid leaves the eye of the impeller a low pressure area is created at the eye allowing more liquid to enter the pump inlet.


Centrifugal Pumps are classified into three general categories:

Radial Flow - a centrifugal pump in which the pressure is developed wholly by centrifugal force.

Mixed Flow - a centrifugal pump in which the pressure is developed partly by centrifugal force and partly by the lift of the vanes of the impeller on the liquid.

Axial Flow - a centrifugal pump in which the pressure is developed by the propelling or lifting action of the vanes of the impeller on the liquid.


Centrifugal Pump Tutorial Topics


Centrifugal Pump Types

Centrifugal Pump Terms

Centrifugal Pump Components

Centrifugal Pump Specific Speed

Centrifugal Pump Sizing

Centrifugal Pump Calculate Total Dynamic Head (TDH)

Centrifugal Pump System Head Curve

Centrifugal Pump Net Positive Suction Head (NPSH)

Centrifugal Pump Cavitation

Centrifugal Pump Parallel Pumping

Centrifugal Pump Series Pumping

Viscous Fluids Effect on Centrifugal Pumps

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