Fabricator reluctant to stamp ASME certification mark with U designator
Fabricator reluctant to stamp ASME certification mark with U designator
(OP)
Hi All
We are now fabricating a heat exchanger, TEMA type BEU. The fabrication is considered partial fabrication as the front end channel is not part of the project scope (re-use the old channel).
To to this "partial" fabrication, the fabricator is reluctant to stamp ASME certification mark with U designator, instead offering and NBIC R stamp.
I still insist for an ASME U stamp as this is new fabrication eventhough not a complete unit, but definitely not a repair to an in-serviced heat exchanger.
Can you clarify this matter. Thanks a lot!
We are now fabricating a heat exchanger, TEMA type BEU. The fabrication is considered partial fabrication as the front end channel is not part of the project scope (re-use the old channel).
To to this "partial" fabrication, the fabricator is reluctant to stamp ASME certification mark with U designator, instead offering and NBIC R stamp.
I still insist for an ASME U stamp as this is new fabrication eventhough not a complete unit, but definitely not a repair to an in-serviced heat exchanger.
Can you clarify this matter. Thanks a lot!





RE: Fabricator reluctant to stamp ASME certification mark with U designator
Even if it was one of their existing units, they won't know what happened to it when it was in service, whether it has been repaired on site etc. so they cannot guarantee anything with it. If it's critical to have a U stamp, you may have to just have them manufacture the whole unit and get that stamped.
RE: Fabricator reluctant to stamp ASME certification mark with U designator
So it is true that we cannot insist for U stamp if the vessel is not a complete fabrication. Maybe we should use Partial Data Report and R-stamped it instead.
RE: Fabricator reluctant to stamp ASME certification mark with U designator
RE: Fabricator reluctant to stamp ASME certification mark with U designator