A 24-inch manway flange on a 100-foot high vessel in a Northeast steel mill was leaking hydrogen sulfide, hydrogen cyanide, and traces of ammonia with 73.9% CO2 at 8 psig and 105°C. The width at the gap between the flange faces varied from 1¼ to 1½ inches circumferentially.

After careful evaluation, it was decided to use Team's patented wire and cable approach to arrest the leak.

The flange was prepared by changing every other stud with Team slotted stud and cap nut. Next, an isolation procedure was done with a special Team packing material at the 10 o'clock and 2 o'clock positions.

The area between the faces of the mating flanges was wound with multiple layers of high tensile wire and secured using patented techniques. Then, three Cable Tensions Devices (CTDs) were installed for additional safety to secure the entire gap area.

Following injection with a special Team sealant, the leak stopped completely and the repair was tested with a vapor analyzer and pronounced secure.