we had a mistake in drilling one hole in a header of a harp (hrsg boiler).
we want to build up the wrong hole by welding and again drill another hole in proximity of repaired area.
Is it permitted or prohibited according to ASME SecI or any other technical codes?
If it is permitted , is there any usual procedure for repair and test of this hole.
OD of hole is 35mm and thickness of pipe is about 34mm.
design pressure of the header is 157 bar.
pipe material is A335-P22
we want to build up the wrong hole by welding and again drill another hole in proximity of repaired area.
Is it permitted or prohibited according to ASME SecI or any other technical codes?
If it is permitted , is there any usual procedure for repair and test of this hole.
OD of hole is 35mm and thickness of pipe is about 34mm.
design pressure of the header is 157 bar.
pipe material is A335-P22