Who can relase U2 stamp PV?
Who can relase U2 stamp PV?
(OP)
Dear expert
We have received offers from two supplier who have to manufacture a pressure vessel according to ASME VIII div.2 with U2 stamp. Both supplier claim they have U2 certification, but:
- Supplier A: in its website it say "Designator U2 – Certified by ASME"
- Supplier B: in the offer it say "Items will be covered by U2 Stamp certificate issued by authorized inspection agency Lloyd's Register Insurance Inc."
My question is: can a supplier release an U2 stamp PV by its own or it is required a third part (i.e. Lloyd's)?
What we have to ask to the supplier or what we have to check to be sure U2-stamp is real.
Supplier B is 60% more expensive than supplier A (and their workshops are in a 20 km range).
Thanks
Michele
We have received offers from two supplier who have to manufacture a pressure vessel according to ASME VIII div.2 with U2 stamp. Both supplier claim they have U2 certification, but:
- Supplier A: in its website it say "Designator U2 – Certified by ASME"
- Supplier B: in the offer it say "Items will be covered by U2 Stamp certificate issued by authorized inspection agency Lloyd's Register Insurance Inc."
My question is: can a supplier release an U2 stamp PV by its own or it is required a third part (i.e. Lloyd's)?
What we have to ask to the supplier or what we have to check to be sure U2-stamp is real.
Supplier B is 60% more expensive than supplier A (and their workshops are in a 20 km range).
Thanks
Michele





RE: Who can relase U2 stamp PV?
You can go to the ASME website and verify that that have a U2 Designator or request a copy of the Certificate from A or B. ASME issues the Certification Mark the manufacturer applies the Designator (U U2 S etc), this change occurred several years ago. Loyd's is a AIA and as such cannot apply the Certification Mark nor the Designator. Maybe they are talking about the ASME Data Report?
RE: Who can relase U2 stamp PV?
Use this link to browse the ASME stamp holder database.
RE: Who can relase U2 stamp PV?
You are correct it is the Manufacturer that applies the stamping after the Inspector has signed the ASME Data Report.
RE: Who can relase U2 stamp PV?
RE: Who can relase U2 stamp PV?
RE: Who can relase U2 stamp PV?
RE: Who can relase U2 stamp PV?
XL83NL image is attached for your reference.
RE: Who can relase U2 stamp PV?
RE: Who can relase U2 stamp PV?