it is on an elbow, it goes flange, pup piece 90 degree elbow, pup piece, flange , pup piece is about 300mm long. its on a 750mm gas line, the cut the 300mm pup piece in half to remove some material to achieve alignment of flanges, and welded back together in the same position, no spare material...
G'day,
I have come across a problem in the field were a seam welded pipe has been welded end to end ( circumfrential weld) and the seams (longitudinal) are directly apposed to each other on either side of the cicrumfrential weld, I can not find in B31.3 where it states there must be a minimum...
