Partial Data Reports
Partial Data Reports
(OP)
For a vessel constructed to ASME Sec VIII Div 1, where a nozzle reinforcing pad will be made from a dished head, and that head will be made from two pieces of plate, welded together by the head vendor, is a PDR form necessary? The repad will not be pressure retaining in itself, as it is vented, however, it seems it will still be subjected to stress( indirectly) induced by pressure? Am I thinking right here?





RE: Partial Data Reports
Yes, I believe you are thinking correctly per UG-120, Paragraph c).
Nozzle reinforcement in the form of a fabricated pad is a pressure vessel part that is subject to inspection requirements under ASME Section VIII, Div 1.
RE: Partial Data Reports
Yess..U will have to make PDR.
Mihir5577
RE: Partial Data Reports
RE: Partial Data Reports
This non-pressure part attached to the pressure part.
RE: Partial Data Reports
If you used a portion of the head that had the weld in it I would like to see a PDR. If not,a MTR and material marking and tracking would be required.
RE: Partial Data Reports
RE: Partial Data Reports
reinforcing pad has requirements per UG-36, UG-37, UG-0, G-41, U-42 for design, welding and material sake, also the welding of reinforcement pad requires soapsuds test.
but it doesnt require PDR.
Am I wrong?
regards
RE: Partial Data Reports
If the pad is for structurals the PDR is not required
genb
RE: Partial Data Reports
Regards,
RLS