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Francis, Kaplan, Pelton
Specialty Cavitation/ Crack Repair
Cavitation repair, crack repair, weld build-up, profile restoration, blending, NDE support, and repair documentation for hydro turbine runners.
For hydro plant teams
Where this fits.
For utility asset managers, hydro plant managers, and outage planners who need cavitation/crack repair inside a planned outage window instead of waiting on long-lead replacement options.
Failure modes
- Cavitation pitting and profile loss
- Cracks at blades, buckets, crowns, bands, or weld transitions
- Erosion, corrosion, and worn hydraulic surfaces
- Outage-discovered damage that changes the planned scope
Field methods
- Weld repair and controlled build-up
- Grinding, blending, and profile restoration
- NDE coordination and owner witness points
- Repair documentation
Documentation
- Photo logs for as-found and completed conditions
- Repair summary with materials and methods used
- NDE, dimensional, and balance records when part of the scope
- Open-item notes for future outage planning
Call HRS when
- A runner has cavitation damage that cannot wait for replacement
- Routine maintenance
- Inspection
- A repair needs craft experience plus documentation your QA plan can use
- The scope is too custom for a catalog component or generic field crew
Proof points
Documentation your outage team can use.
Francis, Kaplan, and Pelton runner experience
Cavitation and crack repair with documented methods
As-found, in-process, and final condition documentation
Next step
Need this scoped for an outage?
Send the asset, symptoms, outage window, photos available, and any QA or owner documentation requirements.