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Practical Centrifugal Pumps
book

Practical Centrifugal Pumps

by Paresh Girdhar, Octo Moniz
April 2011
Beginner to intermediate content levelBeginner to intermediate
264 pages
8h 24m
English
Newnes
Content preview from Practical Centrifugal Pumps
Forces in centrifugal pumps 81
Connection
for balance
line back
to suction
Labyrinth
Balancing piston
Figure 4.6
Axial thrust balancing in a multistage stacked impeller design
In these designs, a balancing drum or piston is provided. This is a rotating circular disc,
which runs against a stationary corresponding disc or ring with a close clearance. The
pressure of the liquid is dropped across this labyrinth passage. This leak is connected
back to the suction of the pump.
The pressure difference across the drum is same as the net of the discharge and suction
pressures. The force generated due to the drum is in a direction opposite to that acting ...
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Publisher Resources

ISBN: 9780080480145