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Question is a little vague and probably not pertinent to this forum since it is not "heat transfer" related. Since it seems you are speaking about shell and tube HE, I suggest you to start reading API 660 and IOGP S-614 recommendation.

Dear FPPE I do not have now b16.5, but have you verified if bolts b8 cl2 are classified as high or intermediate strength? If they are classified as intermediate, you shall perform a detailed calculation and from that you can easily obtain a bolt load to be applied. Total load is the wm1 load...

Hi, I cannot help regarding the metallurgist phenomena. For an engineering evaluation you may refer to ASME FFS, as stated also on API 510. For repair activity you may check ASME PCC-2

Check table UCS-56-1

Hi, I would not accept a proposal per your sketch. Typically, flange type, gasket, material are all decisions taken by client. Generally speaking, what is the internal diameter? Is the shell integral in alloy or CS+CRA? Is really not economical provide an integral flange base on flange...

Thanks for your valuable answer, as usual. I am fully align with you.

Dear All, I am seeking your guidance on table table 5.3 of ASME VIII, Div.2. On table 5.3 are reported several loads combination in design and operating condition with related allowable stressed. 1 - Self-restraining load T Recently, I have seen several reports where temperature is neglected...

Dear All, as per ASME VIII div.2 ed.23, fatigue screening method B has changed. I am not sure on how to understand certain calculation of the screening. Let check for instance eq. (5.19). The damage associated with the full range pressure cycle is the ratio between the number of full pressure...

I think so, but i do not get your point. It is just my wording not totally correct (i have tried to edit the original post and make it more clear) or i did a trivial mistake?

Dear All, I am replicating the example problem E5.2.2 and I am facing some issue in the inputs. I have created my own spreadsheet as per annex 3D and I am comparing my results with the material input data given at E5.2.3. Why as per E5.2.3 in the tab data elastic strain is considered equal to...

Thanks!

Dear All, sometimes has happened in my experience that client requires ATEX nameplate and declaration of conformity for pressure vessel. What i was use to do was to check that vessel operating temperature was lower than the temperature limit of the ATEX zone classification and then prepare a...

Dear All, with new code edition, tube to tubesheet joint requirements have been unformed between div.1 and div.2 I have couple of question on code interpretation. May you help me? UW-20.1.1 (d) - for U tube is not necessary to calculate joint strength UW-20.3.1 - "...These rules apply to...

Thanks both, answers are clear. To sum up: - Agitator cyclically operates with steady state pressure and temperature greater than zero. - FEA for stress evaluation has been modeled considering agitator mechanical cyclic loads and null static loads. - Smooth bar fatigue curve has been used -...

thread794-336380 Dear All, I am reviewing a fatigue analysis of a vessel with an agitator on the top nozzle which is subjected to external loads fatigue (same situation of the quoted thread). No pressure or temperature fatigue is expected. Vessel is analyze with a FEA considering the the...