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Hello, I read the pressure containing vs pressure retaining thread and it was helpful but I still had one question for my scenario. Would these piping attachments be considered pressure retaining? Dummy leg - yes or no Repad (reinforcement pad)on pipe to dummy leg - yes or no Gusset - yes or...

Thank you very much for taking the time to respond and clarify this. I was definitely over thinking it.

These supports (trunnions) are not penetrating they just get welded to the side of the pressurized pipe. Then that weld that is attached to the pressurized pipe gets covered with a repad. So of course you would conduct a visual on the weld I’m more referring to if you would 100% NDE like MPI or...

Hello, I am just wondering if somewhere in B31.3 there is something that covers the NDE requirements for a weld that gets covered by something? Most shops I worked at get 100% MPI or LPI if it’s stainless as the weld is getting covered. Current situation we have trunnions that get welded to...