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  • Users: AMinati
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  1. AMinati

    Cylindrical shell thickess

    I'm checking some calculations of my software for the minimum thickness of a cylindrical shell. I do not understand why I get different results if I use the formula UG-27 (1) from the one that uses the Mandatory Appendix 1 (1). The condition "P does not exceed 0.385SE" is satisfied but I get the...
  2. AMinati

    Inspection openings according UG-46

    Can a 1600 mm ID compressed air vessel (10 barg) subject to corrosion (3 mm) and fatigue be manufactured according BPVC Section VIII Division 1 without manhole, and consider as inspection openings according to UG-46, only the two flanged connections (200 mm ID) at the center of the two upper and...
  3. AMinati

    ASME material EN 10217-1

    ASME II Vol. A Edition 2013 part 2 allows to use welded pipes according to european code SA/EN 10217-1, but in the stress tables there is none of these materials. Can I use these materials for a pressure vessel (not U stamped)? and which stress can I use? the ones reported in the code EN...
  4. AMinati

    ASME Code for PED Vessel

    Some questions regarding ASME Code and PED: I need to design and manufacture pressure vessels according to PED requirements (not U stamped: for the european market only) and the requested design code is ASME VIII Div. 1. Can I use only materials allowed in ASME II? Or can I use also EN...
  5. AMinati

    ASME VIII Div. 1 or ASME I

    We are manufacturing a steam drum (a pressure vessel so named by our costumer). This vessel is not subjected to fire or any other heating source. This vessel have to be calculated and manufactured according ASME I or ASME VIII Div. 1? Many thanks in advance AMinati
  6. AMinati

    ASME Nameplate for Canada

    We are building a pressure vessel for Canada and we are waiting for the the Canadian Registration Number CRN and related approvals. In the ASME nameplate we have to stamp also the CRN or not? Many thanks in advance AMinati
  7. AMinati

    Fitting DIN 11851

    I am manufacturing two vessels according ASME VIII Div. 1 (U stamp + National board) and some openings are made by fittings according to DIN 11851 rules. For the opening calculation I have no problem and I think that fitting DIN 11851 cannot be considered quick openings, but how can I calculate...
  8. AMinati

    Bolting material

    I have to use bolting material SA 320 B8M in the temperature range between -170 °C to + 65 °C. Bolting material according to SA 193 B8M Cl.2 and SA 320 B8M seem to be the same. Same chemical composition and stresses. Why the first can be used up to +427 °C and the second up to +38 °C only? It...
  9. AMinati

    Vessel production impact test plates

    We have built a pressure vessel in carbon steel (22 mm thickness). Weldings need to be impact tested. Longitudinal and circumferential welds are made according two different WPS (the first for all welds less the one for the clousure of the two half part of the vessel, the second for this...
  10. AMinati

    Attachment welds at openings

    Usually we weld all our openings (nozzles, tubes, fittings, etc.) on vessels by means of full penetration welds even if it is not required or neccessary. We think this way is more stiffer and can withstand much more loads, etc. Every time our AI require us to calculate and check on vessels the...

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