ASME Sect. VIII - Flange Calcs
ASME Sect. VIII - Flange Calcs
(OP)
1) If I run the Sect. VIII appendix 2 calcs on a standard B16.5 flange, can I use it for a higher temp/press rating? Vessel design conditions are 200psig & 650°F, but B16.5 says that for a 4" flange (SA-105) at 650°F the pressure rating is only 125psig. I have done most of the calcs by hand and all looks good. Any thoughts?
2) Does anyone have a Mathcad or excel doc to plug the numbers in to do flange calcs?
2) Does anyone have a Mathcad or excel doc to plug the numbers in to do flange calcs?





RE: ASME Sect. VIII - Flange Calcs
wouldn't it just be easier to use 300# flange.
If I were building this vessel, I certainly wouldn't go to the trouble of checking the flange w/ ap 2
RE: ASME Sect. VIII - Flange Calcs
Thanks for the help.
RE: ASME Sect. VIII - Flange Calcs
Of course, I guess that you could find the flange that does fail the Appendix 2 calculation, and then you would have "proof' to change the Product Manager's mind.
RE: ASME Sect. VIII - Flange Calcs
Always use the worst case gasket seating stress in calculation as someone will use this type gasket.
If you are pushing the limits of a flange you are asking for trouble as someone will tighten the flange until "cups" and leaks. The scenario is normally a small leak and someone over tightens the studs to stop the leak and gets a bigger leak.
RE: ASME Sect. VIII - Flange Calcs
RE: ASME Sect. VIII - Flange Calcs
RE: ASME Sect. VIII - Flange Calcs
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