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  1. Henzy1977

    "Local" Minimum Thickness for cylindrical shell UG-27

    Hi all, maybe you can help me finding an exception/rule about a uncommon design here below! Thanks in advance, I do not know what to do..... I have a VERY thick ASME VIII Div.1 pressure vessel with internal diameter "di", and on one point there is a drilling "d1" through the thickness as per...
  2. Henzy1977

    ASME VIII Div.1 Annex 2 Bolting Cross-Sectional Area: “nominal stress area” ??

    ASME VIII Div.1 Annex 2 2-3 (Notation) specifies the following definition for Am1/Am2: “total cross‐sectional area of bolts at root of thread or section of least diameter under stress”. I have a to verify a body-bonnet connection of a valve with Annex 2 and the connection is performed using...
  3. Henzy1977

    Small Opening Verification according to ASME VIII Div.2 (4.5.5) - Problem

    I am designing a very simple pressure vessel with ID=88mm / THK=21mm / p=400bar / T=20degC. I use the ASME VIII Div.2 methodology, acc.to 4.3.3 the thickness is ok with safe margin. I have also an opening of D=25mm on the side of the vessel (like a drain, there will be a blind flange bolted to...

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