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  1. SKY302

    API 650 Wind Moment

    1)Horizontal Wind force on the cylindrical surface = Fs = D x H x PWS. 2)Vertical Wind force on the conical surface = Fr =Pi()/4* D^2 X PWR. 3)Overturning moment about the shell-to-bottom joint from horizontal + vertical wind pressure Mw= Fs*H/2+Fr*D/2
  2. SKY302

    PWHT of existing equipment

    Hi. We are doing additional nozzle installation on existing equipment which was undergone PWHT 10years before due to installed material. Can we do the local PWHT after installation of nozzle?. Is it require to check the material strength before local pwht? If yes what parameters needs to be checked.
  3. SKY302

    Long Weld neck flange for pressure vessel

    Hi Why long weld neck fanges are used for small nozzles in pressure vessels especially nozzle size of 2"and below?

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