On Aug 8, 2007, at 6:31 AM, John Luf wrote:
> Absolutely true statement " fact the Piping Codes apply to new
> construction"... ASME has Published some PCC codes PCC is Post
> Construction Code. in these you will find advice on various
> patching methods etc,
Thanks, John--I over-generalized. The ASME also has some in-service
inspection codes, which I have never used, but but I daresay they're
concerned with practicably maintaining the safety margins of new
equipment. The National Board also maintains repair codes.
It must have been a helluva blown gasket if the flange needs repair. Probably fair to add that the raised face height doesn't actually enter into the ASME Code stress calculation--you can probably do anything you want with it, provided the ring thickness dimension (T, I think) isn't reduced.
Christopher Wright P.E. |"They couldn't hit an elephant at chrisw@skypoint.com | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania1864)
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