A Pump is generally used to induce flow or raise the pressure of a liquid. Centrifugal pumps are a category of Dynamic pumps. The working principle of centrifugal pumps involves imparting energy to the liquid by means of a centrifugal force developed by the rotation of an impeller that has several blades or vanes. The basic centrifugal pump theory of working comprises of the following working stages.

- Liquid enters the pump casing at the impeller eye.

Centrifugal Pump Working Principle

- Velocity energy is imparted to the liquid by means of the centrifugal force produced by rotation of the impeller and the liquid is radially pushed out towards the impeller periphery.

Centrifugal Pump Theory

- The velocity energy of liquid is converted to pressure energy by directing it to an expanding volute design casing in a volute type centrifugal pump or diffusers in a turbine pump.

Pumps are primarily classified as dynamic pumps and positive displacement pumps. As explained in theory above, dynamic pumps operate by developing a high liquid velocity. Positive displacement pumps operate by forcing a fixed volume of liquid. The dynamic action in the centrifugal pump working principle makes it comparatively lesser efficient than positive displacement pumps. However they operate at relatively higher speeds thus permitting a high liquid flow rate in relation to the physical size of the pump. They also usually require lesser installation and maintenance cost. Because of these advantages centrifugal pumps are the most commonly used pumps in industries.

The centrifugal pump working principle animation video describes the theory of operation of both volute and turbine pumps.

Centrifugal Pump Working Principle / Theory Animation Video

(The above video that briefly explains the Working Principle of Centrifugal Pumps is a SIMPLIFIED extract [for video] from the Centrifugal Pump Training course listed in the 'Product' page)

- The above content is NOT representative of the Industrial Training Course listed in the Product page For a Detailed Training on Centrifugal Pumps
with Extensive Animations and Graphics,
which give a Practical Understanding probably to a level never achieved before visit
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T. A. (Tom) Dahmen Chevron - Niche Refinery, U.S.A.
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