mechengineer
Mechanical
- Apr 19, 2001
- 268
UG-44 (b) applies for B16.5 standard piping flanges. But please take note that B16.5 pressure and temperature rating is based on a simple formula from early years flange design with successful applications with all possible operating loads in the world for almost hundred year (ref. Backgroud of ANSI B16.5 Pressure-Temperature rating. E.C. Rodabauch). It is not from accurate mechanics analysis. Now ASME VIII-1, UG-44 (b) takes out so call ‘external load & moment’ to analyze, I don’t think B16.5 committee will agree with doing so. I think it should be non ASME-VIII-1 business.
If ASME VIII-1 keep going this way, but B16.5 does not follow, what will happen? Please see the feedback on UG-44 (b) practice from one of flange manufacturers.
If ASME VIII-1 keep going this way, but B16.5 does not follow, what will happen? Please see the feedback on UG-44 (b) practice from one of flange manufacturers.