April 2011
Beginner to intermediate
264 pages
8h 24m
English
Content preview from Practical Centrifugal Pumps
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188 Practical Centrifugal Pumps
Inner head
gasket
Retaine
r
Expansion
gasket
spacer
Figure 9.29
Expansion gasket spacer
Before the bearings are placed in the housings, the seals are installed.
The bearing housing dowels are inserted and these are bolted.
Finally, the journal and thrust bearings are installed. The location of the thrust collar
lines up the rotor axially to get the right gap between the impeller and diffuser.
Coupling halves are installed and made ready for alignment.
9.8 Optimum time to maintain pumps
Over a period, the performance of the pumps deteriorates and it is always a debate
whether to live with the problem or take the pum ...
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