April 2003

Special Report: Maintenance/Reliability

Use PdM to optimize pump overhauls

These condition monitoring methods estimate increased power consumption due to wear

Beebe, R., Monash University Gippsland School of Engineering

Pumps are arguably the most common machine in the power and process industries, yet relatively little information is available on applying predictive maintenance (PdM)/condition monitoring. When deterioration in performance of a centrifugal pump causes a drop in plant production, overhaul is readily justified, as its cost is usually small in proportion. When the effect of deterioration is only to increase power consumption, the time to overhaul for minimum cost can be calculated from test results. Some basic condition monitoring tests for pumps are described. These condition monitoring methods can be used to estimate the

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