I am investigating a quality issue with an ASME coded vessel supplied to my company that was built per ASME Sec. VIII, D1 2007. It is a 8.5' wide x 19' long drum with a flanged head on one end. The vessel was delivered with the head assembled to the drum and upon inspection, we found that the...
Thanks for the reply jte.
As for the process that destroys the flange faces...well, my experience is limited to 20-30 year old chemical plants with lots carbon steel equipment handling products that tend to form corrosion as they weep across faces over long periods of time, i.e. bridged...
In the course of maintaining aging process equipment, I often have to remachine gasket faces and at times there isnt enough of the RF left so I have to cut into the flange web. I need to determine how much metal I can machine off the web (boltcircle) of a flange based on the MAWP/MAWT of the...
