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  1. kywlium

    How to consider torsional moment in a body flange

    Hello Mandeep, Usually the stresses due to torsional moments are low compared to the stresses due to bending moments. Using PD5500-G or WRC-107 you see the same when only a torsional moment or only a bending moment is entered. Stresses due to torsion are low and often not mentioned in nozzle...
  2. kywlium

    Vacuum test acc. PD5500

    I read the rest of paragraph 5.8.5.5 . My point is that for the vessel in question it is reasonably practicable to perform a vacuum test. I just think that for this vessel(Max./min.design pressure= 7 barg/F.V.)a pressure test based on internal pressure should be enough. In our case we should...
  3. kywlium

    Vacuum test acc. PD5500

    Acc. §5.8.5.5 PD5500 a vacuum test has to be performed (where reasonably practicable). Is this true?, since non of the other codes have this requirement.
  4. kywlium

    API 650 appendix F & S

    Thanks JoeTank and Bonswa for your quick answers. Acc. Appendix S3.2 the thickness should be acc. formula "but not less than the nominal plate thickness LISTED in 5.6.1.1". When I see the word "listed" does this mean all values given in the table?. When I check the dictionary (grouped items) you...
  5. kywlium

    API 650 appendix F & S

    Since addenda 2007 the minimum thickness for a stainless steel storage tank (A240 316L) the lower shell coarse must be 6 mm because appendix S refers to par. 5.6.1.1 note 4 (I believe). Previous addenda did not show this note so minimum thickness acc. table of this paragraph was 5 mm. I can...
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