May 18, 2021

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Pumps Types – Types of Pump – Classification of Pumps – Different Types …

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Introduction
Types of Centrifugal Pumps
Parts of Centrifugal Pumps
Forces In Centrifugal Pumps
NPSH
Cavitation
Startup / Shutdown And Troubleshooting
Operation
Pump
is a machine that adds energy to the liquid.
Pump is a machine that moves liquid from a lower elevation
to high elevation
From low pressure to high pressure
Increases the flow rate of the liquid.

Pumps are divided
into two categories.
Centrifugal Pumps

Positive Displacement
Pumps

lThe Pumps that work
on the principles of centrifugal force called Centrifugal Pumps
Centrifugal force act
radially outward on the body
moving in a curve.

single Stage
Centrifugal Pumps
multistage Centrifugal Pumps
propeller type
Centrifugal Pumps
Turbine type
Centrifugal Pumps 

Single
Stage Centrifugal Pumps
Only one Impellor on
Shaft
Used for low/medium
pressure application.
Available in both
horizontal & vertical arrangements
 may be
single suction or double suction

Multi-Stage
Centrifugal Pump
Having two or more
impellers on a shaft in series
Used for higher
discharge head.
Impellers are located
at the centre of the shaft.
The rotor is supported at
shaft ends.
Each Impeller adds the same amount of head with constant capacity.
Propeller
Pump
A propeller whips
& adds energy to liquid instead of the impeller.
Liquid leaves the
propeller in the same direction as it enters
 handle large
capacities.
Cannot increase much
pressure.
Turbine
Pump
A mixture of impeller
& propeller pumps.
Flow is halfway
through impeller & propeller pumps.
Can be single or
multistage.
Can handles high
capacity & low head.