Help on identification on 30000 gallon pressure vessel
Help on identification on 30000 gallon pressure vessel
(OP)
Hello
I have been a lurker on this forum for a while. I am in a situation where I moved a 30K gallon NH3 pressure vessel and cannot locate the correct information for a U1A to replace the missing data plate. Tank was usable in old location, but once moved must be correctly identified and up to code.
I have attached a few pictures of various stampings on tank. Tank measures 107.5 dia and roughly 67ft long
Thanks for any help!!
http://files.engineering.com/getfile.aspx?folder=9...
http://files.engineering.com/getfile.aspx?folder=9...
http://files.engineering.com/getfile.aspx?folder=a...
http://files.engineering.com/getfile.aspx?folder=3...
I have been a lurker on this forum for a while. I am in a situation where I moved a 30K gallon NH3 pressure vessel and cannot locate the correct information for a U1A to replace the missing data plate. Tank was usable in old location, but once moved must be correctly identified and up to code.
I have attached a few pictures of various stampings on tank. Tank measures 107.5 dia and roughly 67ft long
Thanks for any help!!
http://files.engineering.com/getfile.aspx?folder=9...
http://files.engineering.com/getfile.aspx?folder=9...
http://files.engineering.com/getfile.aspx?folder=a...
http://files.engineering.com/getfile.aspx?folder=3...





RE: Help on identification on 30000 gallon pressure vessel
Or do you need to re-create a completely missing plate, but have photo's of the old plate?
RE: Help on identification on 30000 gallon pressure vessel
RE: Help on identification on 30000 gallon pressure vessel
2nd tough item: figure out which tank this is, of all the ones that this mfr has made.
I really don't see you being able to achieve these two items. The stampings you have photographed do not appear to have any repeated numbers, i.e. mfr's Job#. So even if you figure out the mfr, determining WHICH tank will be impossible. Further, the two items sticking out of the manway cover appear to be 'hillbilly' engineering*. Tells me a fair ammount about the previous history of this tank. This tank would make an excellent tornado shelter, and not much else.
*IF you get past items 1 & 2, throw that M/W cover away. Welds on NH3 tanks require PWHT 'for process', in addition to welds on an ASME item that thick.
RE: Help on identification on 30000 gallon pressure vessel
RE: Help on identification on 30000 gallon pressure vessel
As you've been doing, you need to dig up any/all stamping on the vessel, and hope you can somehow trace these back to some paper documentation.
I couldn't open the first two linked files, but if this is a very old tank, all I can say is good luck...
RE: Help on identification on 30000 gallon pressure vessel
Regards,
Mike
RE: Help on identification on 30000 gallon pressure vessel
RE: Help on identification on 30000 gallon pressure vessel
Is the tank a listed depreciated asset?
When did you buy it?
From who?
If the from who answer is the fabricator you might really have a chance.
If you buy a lot of tanks from the same place over the same period you probably have an unsolvable problem. Maybe not.
Regards
SToneCold
RE: Help on identification on 30000 gallon pressure vessel
Scary
RE: Help on identification on 30000 gallon pressure vessel
Maybe you just need to let the person responsible for your liability insurance in on this process.
That might bring a full dose of reality to what they are asking.
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube
RE: Help on identification on 30000 gallon pressure vessel
Be sure and mention the 'hillbilly' nozzle additions into the manway, where they didn't bother to PWHT the welds, leaving a probable cracking issue.
RE: Help on identification on 30000 gallon pressure vessel