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Basics of PumpsBy priyank singh

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What is Pump?

It converts mechanicalenergy into hydraulic

energy.Water or other uid at inmotion

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Pump has three maincharacteristics

Pump Characteristics:1 Pressure

! "lo#

$ %ead

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What is Pump Head?

Total Static

Head

Suction

Lift

Discharge

Head

Calculation

&egative'uction

http://educypedia.karadimov.info/library/HorizontalCentrifugalPump_UK.swfhttp://educypedia.karadimov.info/library/HorizontalCentrifugalPump_UK.swfhttp://educypedia.karadimov.info/library/HorizontalCentrifugalPump_UK.swf

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Pump Selection

Pumps are selected according to the Plant re(uirement #hich )ased on:

What pressure is re(uired*

What o# is re(uired*

%o# much head is re(uired*

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Centrifugal Pumps

+ostly our centrifugal pumps are%ori,ontal shaft mounted-olute casing'ingle impeller

Bottom suction top discharge

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Cross section ie! ofcentrifugal pumps

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ypes and construction features ofCentrifugal Pumps

1# Position$

%ertical Hori&ontal Su'merged

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ypes and construction features ofCentrifugal Pumps

/. &um)er of impellers in one

casing:

'ingle stage +ulti stage

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Cross section ie! ofcentrifugal pumps

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*ou'le Suction Centrifugal Pump

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Centrifugal Pump Priming

Priming of a centrifugal pump is necessary to start its function and

to avoid damage to its impeller.

Priming is done by filling the suction pipe with the same

fluid.

A foot valve (non return valve) is necessary at the bottom ofthe suction pipe to avoid draining out the fluid.

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Centrifugal Pump Self+Priming

Priming of a centrifugal pump is necessaryat the )eginning and after that it stay selfprime.

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Components of Centrifugal Pump