tolerance for flange joint
tolerance for flange joint
(OP)
Dear All,
Please let me know what is the tolerance ( misalignment ) for two flanges joint together by stud bolts as per any standard.
Thanks in advance
Please let me know what is the tolerance ( misalignment ) for two flanges joint together by stud bolts as per any standard.
Thanks in advance





RE: tolerance for flange joint
RE: tolerance for flange joint
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I'm sure you could also find something somewhere in API or perhaps in documents published by the Pipe Fabrication Institute (PFI) but offhand I'm not sure which or where.
RE: tolerance for flange joint
RE: tolerance for flange joint
Flange faces shall be aligned within 1 mm in 200 mm measured across any diameter; flange bolt holes shall be aligned within 3 mm maximum offset.
I think this is pretty much what is in the Los Alamos guideline but they have some pictures which are helpful.