Good day to all,
For rectangular vessel(Header box), I am aware that one should apply Appendix 13 as per ASME code. However if my hydrotest value is higher than 1.3*design pressure* LSR, how do I validate that the vessel strength is acceptable at the higher pressure theoretically. For...
Good day everyone, for ASME appendix 13 tube to tube-sheet joint, when it is not possible to obtain full strength weld due insufficient space for welding(at least this is what I am told), the other way I can verify the tube joint is through appendix A? I manage to get Pe,Po and Lmax value...
Good Day to all,
For Section VIII Appendix 2 Figure 2-4 sketch 6(welding neck), is there anything in code that states the small hub thickness has to be the same as the shell attached? The small hub end is 16mm (sa-105)and shell plate is 14mm (sa-515 70). Also, I did not quite understand why the...
Dear All,
I have a replacement job with one tube-sheet integral to both sides and the other tube-sheet integral to shell and extended flange. The extended flange tube-sheet is attached to vessel B which is not being replaced. Both tube-sheets are of different thickness and different boundary...
Good day to all,
I need some opinion/advise on the material of sight glass in presence of sodium hydroxide. The design temperature is around 195 degC and pressure 1.3 MPa. The only offer i got from suppliers was quartz but i am curious if borosilicate can do the job. Thank you.
Yours...
Good Day to all,
I am trying to understand my vendor's ANSYS report by comparing the values for Membrane, Bending and total stresses between Appendix 13 and ANSYS. The Finite element was build with no tube ligaments and only internal pressure as loading condition. However the values for membrane...
Good Day to All,
For Sa-423 Gr.2 i am trying to get the yield strength at 293 Degc which is my design temperature. In section part D, Table Y-1, it shows one value 255MPa at 40degc only. I am confused as table 1A maximum temperature limit for VIII-1 is at 343 Degc and there are allowable stress...
