Flange ID Weld
Flange ID Weld
(OP)
My colleague is trying to do a 10" blind and flange repair at the end of a header in a Sec 1 boiler. They don't have access to the outside of the flange and were wondering if they can machine the pipe/flange so that a full pen butt weld is done from the inside of the pipe. I couldn't think of a reason why not. Does anyone see an issue with that?





RE: Flange ID Weld
RE: Flange ID Weld
As long as you can produce a full penetration weld (if that is what is required) then you are good to go. How you produced the FP weld does not matter.
However, racookpe1978 has made a valid point - if you can't achieve a sound joint via mock-up in the workshop you have no hope in the field / boiler.
Cheers,
DD
RE: Flange ID Weld
RE: Flange ID Weld
"Nobody expects the Spanish Inquisition!"