Propane storage tanks - Missing nameplates

[innisla]

This was sent to a former co worker who was a Regional Engineering Manager for the propane operations of my former employer... feel free to comment accordingly

RG...
I have copied you on correspondence I had with AR on the issue of missing nameplates on ASME tanks in LPG service. I was hoping for some input from you, based on your experience within the ASIA/Pacific and European areas regarding LPG vessels and of course the pressure vessel codes applicable in some jurisdictions.

The main issue is that there is an LPG vessel which is in good shape, on LPG service throughout it life, UT readings are good, hydrostatic test good, both internal and external condition is also good, but the nameplate is missing or not attached to the vessel.

I recalled very many years ago reading that if the vessel is still in its originally installed location and can be proved to be the case, the issue of the unattached nameplate does not mean you have to scrap the vessel. It further stated that the method used for declassifying a pressure vessel was to remove the nameplate, thus some scrap metal persons were buying the vessels as scrap (not for use as pressure vessels) and sending to third world countries who place them into pressurized service. My opinion is that if a vessel fails the tests, then it is quite clear that it can be easily discovered (unless welding was done and camouflaged) then that third person should have a complete test done before placing the vessel into pressurized service.

What can you tell me of the practices in your former area of responsibility, do you have any regulations to share?

Let me know.

The above are my thoughts and not to be considered general practices...

 

[chicopee]

I would use this tank as a non pressure vessel and buy a second hand tank with nameplates from an approved dealers. There is a large supply of second hand tanks in the US and numerous dealers therefore, price should be palatable after thorough search.

 

[LittleInch]

The issue is that you really need something - be it a name plate, an order no, the original certificate / inspection details, manufacturers details - SOMETHING.

It currently sounds like there is nothing and therefore in the eyes of the authorities, insurance companies etc, you have a large amount of scrap metal / non pressure containing vessel sitting there.

If you search missing nameplate in the boiler and PV forum, you find a number of similar posts, all of which end up with the same result - no plate, no paperwork, no pressure vessel.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[bpv66]

The NBIC Part 2 requires traceability to the ASME nameplate (if these are ASME vessels). If you have no traceability to the original nameplate you should contact the Jurisdiction of where the vessel is installed. They may allow it to operate as a "State Special" if you can satisfy all of their requirements.