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- W970433039 abstract "This chapter discusses several performance analysis methods, other than shut-off head and head-flow test for condition monitoring (CM) of pumps. Multi-stage pumps of the split casing, ring-section design usually have all or most of the impellers facing towards the suction end. To overcome the resulting axial thrust towards the suction end, some pump discharge flow is led through an annular clearance to act against a balance drum or balance disk. The resulting force is self-adjusting with pump flow or speed, and results in a smaller residual thrust loading on the pump bearings. The flow is returned to the pump suction piping, or to the deaerator tank. In these designs, the balance device leak-off flow should be measured as a guide to pump condition, and that overhaul should be considered when the flow has doubled. The attraction of this method is that the balance leak-off line is quite small relative to the main flow line, and a permanent flow metering device is therefore relatively inexpensive." @default.
- W970433039 created "2016-06-24" @default.
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- W970433039 date "2004-01-01" @default.
- W970433039 modified "2023-10-16" @default.
- W970433039 title "Other methods of performance analysis for pump condition monitoring" @default.
- W970433039 cites W2471554948 @default.
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- W970433039 doi "https://doi.org/10.1016/b978-185617408-4/50005-x" @default.
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