Flange encapsulation and sealing
Flange faces corrode and weep at the gasket joint, and exposed bolting seizes. This opens leak paths and makes future disassembly hard.
The need for flange encapsulation and sealing
BHI Coatings performs flange encapsulation and sealing across Alvin and the Texas Gulf Coast. The same atmospheric and process attack does two jobs at once. It corrodes the flange face until the gasket joint weeps, and it seizes the exposed bolting solid. A weeping flange wastes product, corrodes the steel around it, and warns you the joint may not reseal if you break it, and once the studs are seized the next disassembly stops being a routine gasket change and becomes a cut-and-replace job.
How BHI Coatings does flange encapsulation and sealing
We prepare the flange and the steel around it, then encapsulate the whole assembly in a cold-cure compound that seals the leaking joint and shields the bolting at the same time. It is done in place, with no hot work and no need to break the connection. The crew dresses the compound so the encapsulation protects the studs and still leaves the joint serviceable.
The leak stops, and the corrosion at the gasket face is held back with it. The assembly stays free for future disassembly, which makes the next outage a gasket change rather than a flange replacement.
More Leak Sealing applications
Bends, tees, and elbows wear fastest because flow turbulence concentrates erosion and corrosion at the change of direction.
Learn more →Engineered composite pipe wrap repairThrough-wall corrosion, external pitting, and mechanical damage thin pressurized pipes and vessels before a replacement turnaround is scheduled.
Learn more →Live leak sealingActive leaks at pipes, headers, and vessels waste product and corrode nearby steel before a shutdown can be scheduled.
Learn more →Oil and transformer leak sealingOil leaks at transformer tanks, gearbox cases, and weld seams persist because the oil film stops conventional adhesives from setting.
Learn more →Pipe and tank leak sealingPinholes, through-wall defects, and corrosion pits open leak paths in pipe and tank walls, often on wet or oil-contaminated steel.
Learn more →SF6 gas leak sealingSF6 leaks at switchgear flanges and seals release an expensive insulating gas and degrade equipment reliability.
Learn more →All 7 in Leak SealingThe whole capability in one place, with the work grouped.
See the capability →Contact BHI Coatings
Have equipment that needs to stay in service?
Tell us what is failing. We respond quickly, and we offer 24-hour on-call service.