NDE for Joint Category D
NDE for Joint Category D
(OP)
I am looking for any statement in ASME VIII-1 regarding the requirements of NDE for joint category D (nozzle neck attached on shell by fillet weld). UW-2(a)(1)(5) only state that joint Category D shall be full penetration and there is no requirement to performed NDE such as MT/PT/UT. Can anyone help me?





RE: NDE for Joint Category D
To help you out, you should always use a full pen weld on CAT D due to events like nozzle loads. I assume your service is nonsour-noncorrosive-A-typical-run-of-the-mill service then ask for random inspection of 2 nozzles on the vessel with 100% UT and MT. If an indication then the penalty is to make the fabricator pay for same NDE on another nozzle., etc.
RE: NDE for Joint Category D
Regards,
Mike