UOP Approval

UOP year 2010, I believe still valid until now, is referring to Pipe class and validated type. Pipe class is about concentration, how wet, how acid the HF concentration is.
Mainly globe and plug valves:
Manufacturer: Pacific, PetrolValves, Strack, Velan (Montreal), Xanik, Descote, Durco, FluoroSeal, Vogt, Tufline, Powell.
The last four years, I've noticed that now BonneyForge (globe valve Italy) and AZ (Plug, Germany) valves are also part of the UOP approval.
Unlike old days, UOP is somehow reluctant to share collaborative information over approved vendor.

Be cautious, just because one vendor for instance approved for 2"-300# Globe valve, not necessarily means that they can supply officially approved 4"-300# Globe valve.
Should ask above manufacturers-themselves.

Regards,
MR

All valves will last for years, except the ones that were poorly manufactured; are still wrongly operated and or were wrongly selected