Clamp Design:
An analysis of a clamp for a sour gas line was made for the Heat Exchanger. The on-line leak sealing clamp design was merely a contingency should the brass wire wrap method have inadequate support.
Brass Wire Wrapping:
Multiple adaptor ports were strategically placed on the flange to ensure best compound flow and curing during injection. The placing of the adaptor ports was also significant in its purpose to reduce additional stresses that was added to the studs during injection.
Seal:
Brass wire wrap was peened into the flange gap using intrinsically safe equipment. Beruseal High Temperature Hydrocarbon resistant compound was injected strategically into the flange gap & bolt pockets until a full circumferential seal was achieved. The entire job was performed under fresh air and had no re-injections until unit was replaced during the next scheduled Turnaround.