Centrifugal Pumps
Centrifugal pumps are widely regarded as the simplest type of pump. Centrifugal pumps generally consist of a rotating element, called an impeller, and a casing. Liquid is led to the eye or center of the impeller through an inlet and is set into rotation by the impeller vanes. By virtue of centrifugal force, the liquid is thrown from the rim or periphery of the impeller with a considerable velocity and pressure. The casing, which closely surrounds the impeller, has a volute shaped passage of increasing area, which collects the liquid leaving the impeller, and converts a portion of its velocity energy into additional pressure energy. This casing passage leads to the discharge nozzle of the pump where it is forced into the discharge piping.
There are three types of centrifugal pump classifications:
- Radial Flow - pressure is developed wholly by centrifugal force.
- Mixed Flow - pressure is developed partly by centrifugal force and partly by the lift of the vanes of the impeller on the liquid.
- Axial Flow - pressure is developed by the propelling or lifting action of the vanes of the impeller on the liquid.
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| Liquiflo |
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| March |
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| MTH |
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| Nagle |
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| Pioneer |
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| Ruthman |
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| Standard |
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| Sundyne |
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| Truflo |
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| Typhoon |
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| Vanton |
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| Vaughan |
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| Wright |
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