Metric dimension of ASME16.5 flanges
Metric dimension of ASME16.5 flanges
(OP)
According to ASME 16.5, 2003 Edition, Metric dimension of raised face thickmess of class 150 and 300 pipe flange is 2mm(0.06in). 0.06in is 1.524mm to be exact.
If the flange were fabricated by 1.6mm th, is that out of specification ?
Why did ASME revise B16.5 to round off decimal place ?





RE: Metric dimension of ASME16.5 flanges
The only thing to matter, is the ASME B16.5 stamp on the flange rim and the faricator's stamp. I'm pretty sure they (the Code writers) didn't intend to upset me or you with the rounding up to 2 mm in the Code. However, the face thickness should not be less than 0.06" or 1.524mm, or in excess of 2 mm. Anything in between is acceptable, due to the manufacturing tolerances and because of the Code disclaimer which doesn't allow the conversion from inch to millimeters.
cheers,
gr2vessels
RE: Metric dimension of ASME16.5 flanges
RE: Metric dimension of ASME16.5 flanges
jt
RE: Metric dimension of ASME16.5 flanges
Hope, this is related to your subject.