Air Cooled Heat Exchangers
Air Cooled Heat Exchangers (or Fin Fan Coolers as they are commonly called) generally have a rectangular header at each end of a bank of tubes.
Opposite each tube, there is usually a threaded plug, the removal of which permits access, across the header, into the tube.
Sometimes leaks develop at the threaded plugs.
Furmanite has a solution to seal these leaks.