Centrifugal Pump Coupling Membrane Damage
Centrifugal pump coupling membrane damage caused noisy operation and changes in FFT spectra. Corrective action included replacing the coupling spacer and reviewing and correcting alignment.
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CATCH OF THE DAY
API OH2 TYPE CENTRIFUGAL PUMP COUPLING MEMBRANE DAMAGE:
OBSERVATIONS:
· NOISY OPERATION,
· CHANGE IN FFT SPECTRA WITH MULTIPLE HARMONICS,
· NO STEP CHANGE IN VIBRATION OVERALL AMPLITUDE (less than 2.0mm/sec Pk)
· IMPACTS IN TWF
CORRECTIVE ACTION: COUPLING SPACER REPLACED, ALIGNMENT REVIEWED AND CORRECTED.
note: below is damaged coupling membrane. waterfall and time waveform before, with failure (middle data) and after correction.
Additional Images
Post Information
Category:
Vibration Case Study
Language:
English
Reading Time:
1 min
Tags
Original Authors
Prabhu P.
Source:
https://www.lin...