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  1. mg75

    Nozzle weld seam efficiency

    Thank you Mike, I was not too sure about this. Because this is for ASME VIII div1, but when I looked at ASME VIII div 2, the category D corner joint need at least 10% volumetric examination (Table 7.2, joint category D, type of weld 7) to reach a weld efficiency of 0.85. And so even if the...
  2. mg75

    Nozzle weld seam efficiency

    Hi all, With reference to thread292-267966, what would you answer to the following question : For a set-in 12" nozzle made of welded pipe TP304L Sch80S, that does not have circumferential butt welds in its assembly, Category C fillet welds [such as shown in Fig. 2-4, sketch (3a)] are used to...
  3. mg75

    NDE of a set-in nozzle weld in ASME VIII div 1 thin duplex shell

    Thank you all for your replies. I just tell the end of the story, for those who would read this topic later on. We decided to perform a destructive examination on a nozzle, and found out that nozzle fit-up was probably different from what was designed. I think we saved time compared to the UT...
  4. mg75

    NDE of a set-in nozzle weld in ASME VIII div 1 thin duplex shell

    Hi everyone, After reading through ASME VIII div 1, some of its code cases, ASME V, and various papers about the subject, I am trying to make up my mind about the most convenient way to inspect the welds connecting set-in nozzles to their duplex vessel. I would usually stick to the code...
  5. mg75

    Acceptance criteria when considering UG-22(j)

    Hi everyone, Since 2008, ASMEVIIIdiv1 requires that "test pressure and coincident static head acting during the test" is considered in designing a vessel. I hope I was not the only one to keep an eye on this before code eventually asked for it. However, div1 does not mention specific acceptance...
  6. mg75

    UG-42 : Reinforcement of Multiple Openings

    gr2vessels, Thank you much for your advice. It is clear and being descriptive actually helped me. I think I got it, but your first comment let me think I could miss something. I agree 'd' is measured in a plane containing the nozzle centerline. But there is still in infinite number of planes...
  7. mg75

    UG-42 : Reinforcement of Multiple Openings

    I have a question regarding ASMEVIII Div1 UG-42 When two similar nozzles are installed on a longitudinal line of a vessel, and both nozzles are radial, I have no problem using UG-42 since whatever the plane I consider, the finished diameter d of the opening (as defined in UG-37) is the same...

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