CAVITATION DAMAGE IN PUMP REPAIRED
Industry: Power (POWR)
Application: CEP-Centrifugal Pumps (CEP)
Substrate: Cast carbon steel (5% Nickel)
Customer Location: Power Plant / NE Oklahoma
Application Date: March 2007
Products:
Belzona® 1221 (Super E-Metal)
Belzona® 2141 (ACR Elastomer)
Problem: Severe cavitation erosion above and below wear ring. limited time to restore pump.
Photograph Descriptions
- Extent of cavitation damage to suction bell, above and below wear ring
- Repairing damage back to original dimensions
- Repaired surface rebated, taped and half coated with Belzona® 2141
- Finished job ready for bushing installation then into service
Application Situation
Suction bell of pump found to be cavitated during 1 week outage.
Application Method
Application carried out in accordance with Belzona Know-How System Leaflets CEP-3 and CEP-5. Rebate grooves were cut to terminate coating.
Belzona Facts
Belzona repair and protective coating combined with 1-week turnaround saved approx. $15,000 versus purchase of new unit with much longer lead time. Improved resistance to cavitation anticipated.
