Crack and hole repair on casings and equipment
Welding on pressure separators and code-stamped vessels triggers re-stamping, stress relief and thermal distortion that can cost more than the defect.
The need for crack and hole repair on casings and equipment
BHI Coatings performs crack and hole repair on casings and equipment across Alvin and the Texas Gulf Coast. On a code-stamped vessel or a pressure separator, a crack or a through-wall hole is almost never a simple weld. Re-stamping, post-weld stress relief and thermal distortion all follow the arc in, and together they can run higher than the defect that started it. The vessel sits down through the whole inspection and qualification cycle.
How BHI Coatings does crack and hole repair on casings and equipment
Our crew cold-bonds the structural repair onto prepared metal, then machines it back to the original profile. No hot work. No heat-affected zone. We work in the Alvin shop or in the field using structural repair composites such as Belzona 1111 and 1121. The result qualifies as a non-welded repair under the relevant inspection codes, including the composite repair provisions of ASME PCC-2.
Typically applied with Belzona 1111, Belzona 1121, matched to the service conditions.
The defect gets sealed and rebuilt with no re-stamping and no stress relief. The vessel comes back sooner, and nobody has to run a welded-repair qualification cycle to get it there.
More Metal Repair applications
Bearing-bore wear, split-line distortion and oil-leak paths at gasket faces retire compressor, engine and gearbox housings before the internals wear out.
Learn more →General metal-loss rebuilding compositesMetal loss from corrosion, erosion or pitting retires equipment once it reaches a code-trigger thickness, and weld build-up adds heat distortion.
Learn more →Heat exchanger, tube sheet and water box repairDissimilar tube metals set up galvanic corrosion at the tube sheet and water box, attacking the steel around each tube end and opening leak paths.
Learn more →On-site flange face and nozzle insert repairHeat cycling, gasket-witness machining and dropped tools deform flange faces and corrode nozzle sleeves, so the line leaks and stays out of service.
Learn more →Plain bearing, bushing and bearing-housing repairWorn bearing bores, fretted bushing seats and vibration-loosened housings shift the rotating axis and shorten coupling and seal life.
Learn more →Pump impeller and casing rebuildingErosion-corrosion and cavitation reshape impeller vanes and casing profiles, pulling the pump off its head curve and cutting efficiency.
Learn more →All 11 in Metal RepairThe whole capability in one place, with the work grouped.
See the capability →Contact BHI Coatings
Have equipment that needs to stay in service?
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