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  • Users: Gavin_UK
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  1. G

    Welding to Section VIII Div 1. Butt welds only?

    Can some one help me with understanding what welds are permitted in a pressure vessel to Section VIII, Div 1. (I am looking at 2023 version) UW-9 a Seems to pretty clear state only Butt welds can be used for retaining pressure.... "Only butt-type joints may be used with the permitted welding...
  2. G

    BPVC Div 1 Bolt Load Mandatory Appendix 2.

    I am trying to design a flange using Div 1, Mandatory Appendix 2 Bolted Flanges. But because of the gaskets and bolts the flange is getting very thick, which I am trying to avoid Most of that is driven by using the bolt load, I know using Torque to set Bolt load is quite inaccurate especially...
  3. G

    Fired Boiler EN13445

    Hello All, Is there an equivalent European standard to EN13445 for fired boilers? I can't seem to find one. Any help apprecaited.
  4. G

    BPVC Div 1 Thread Allowable (UG-43)

    Hello All, From reading BPVC 2023 Div 1. The only reference I can find for threaded connections is UG-43. The way I understand this we can only make a connection to the pressure vessel if the thread is listed ASME B1.20.1. Is this correct? Any help appreciated. Thanks Gavin
  5. G

    Stainless Steel for ASME BPVC VIII

    Hello All, I am working on a design using Stainless Steel tube and I need to fix the diameters for a production intent design. Ideally using a standard size and avoiding any turning of the OD or ID. The product needs to go through ASME certification BPVC VIII, so I need to know the ASME...
  6. G

    ASME BPVC.VIII.1-2023 Man App 2. Flange Connections Calculations

    Hello All, I am seeking advice on understanding this, I have scanned through the forums and found some similar lines of enquiry, but I still can't understand it this appendix fully. This is based on the 2023 release. I am pretty new to ASME and very new to pressure vessels. 1. Equation 5. (Pg...

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