Presentation on Pumps

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Centrifugal Pumps

Very simple design
Two main parts are the impeller and the diffuser
Impellers
Bronze
poly carbonate
cast iron
stainless steel

Pressure developed by the Pump

depends upon
Impeller dia
No.of impellers
size of the impeller eye
shaft speed

Advantages of centrifugal Pump

Very efficient
Produce smooth and even flow
Reliable with good service life

Disadvantages

Loss of priming easily
Efficiency depends upon operating design head & speed.


Jet Pumps
Combination of a surface centrifugal pump, nozzle and venturi arrangement.
Used in small dia bore wells.
Simple design
Low purchase and maintenance cost.
Easy accessibility to all moving parts.
Low efficiency.