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  • Users: nlgcode
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  1. nlgcode

    PWHT of reinforcement

    We are going to construct an above ground storage tank per API 650. Regarding the PWHT requirements: 1) Do we must PWHT whole the thickened insert plate together with the welded reinforcement pad and the welded nozzle? OR Can we only PWHT for the welded re-pad together with the welded nozzle...
  2. nlgcode

    Venting in double-welded slip-on flange

    ASME B31.3-F308.2 state that "The need for venting the space between the welds in double-welded..." Please help me in clarification it. Is this mean drill a hole for venting during welding? And after that is need weld to close it? Thanks, nlgcode

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