No U-1 Form?
No U-1 Form?
(OP)
My question was involving working on vessels that have no U-1 Form.
Is this the end of the world as we now know it?
I know there is a ton of them out there and was wondering what would somebody do in this situation? What we know now is... That they have name plates, and they weren't registered with the National Board.
I have the year built, the manufacturer, & the serial number.
Is this essentially all I need?
Thanks for your time.
Is this the end of the world as we now know it?
I know there is a ton of them out there and was wondering what would somebody do in this situation? What we know now is... That they have name plates, and they weren't registered with the National Board.
I have the year built, the manufacturer, & the serial number.
Is this essentially all I need?
Thanks for your time.





RE: No U-1 Form?
What is a U-1 form? And what is the end of world as we know it?
RE: No U-1 Form?
you could also go back to the original fabricator and see if they have a copy.
RE: No U-1 Form?
If you nor the original manufacturer have the form, your AI may require an analysis of the vessel to the original code of construction as part of the review in the event of an alteration. Repairs are much more straightforward.
Information you may require:
-Materials of Construction
-Pressure and vacuum rating
-Pressure and vacuum temperature
-Minimum design metal temperature
-Existing shell, head, and nozzle thicknesses
-Lethal service of the vessel (Yes/No)
-RT requirements
-PWHT requirements
RE: No U-1 Form?
Information you
maywill require:-Materials of Construction
-Pressure and vacuum rating
-Pressure and vacuum temperature
-Minimum design metal temperature
-Existing shell, head, and nozzle thicknesses
-Lethal service of the vessel (Yes/No)
-RT requirements
-PWHT requirements
RE: No U-1 Form?
RE: No U-1 Form?
RE: No U-1 Form?
They will need the Mfr's name, year of mfr, and the National Board # of your vessel. Perhaps what you are seeing as s/n is actually the NB#.
I have done this A LOT. Been several places where fulks threw out "useless files" like U-1's and as-Built drawings.
RE: No U-1 Form?
I was uncertain of the contents of the nameplate, thus the usage of "may". If it is on the nameplate, RefineryQC has it.
For some repairs, it is not necessary to know some of the information (Adding a nozzle of like size, thickness, and material to one existing on the vessel, e.g.). I am not saying that is how *I* would go about it, but it does happen and regularly at that.
RE: No U-1 Form?