laminating existing tank shells with new sheet steel 1

[rab1944]

Is there any restriction on welding a thin gauge less corrosive sheet material over the existing tank shell and bottom. This would be done with lap welds and plug welds.
Thanks in advance

 

[jte]

What you are referring to sounds like what is commonly known as "strip lining." That sounds like a great idea at first (i.e. to the Project Engineer). Then the welds inevitably crack. The corrosion gets worse (now its stagnant). Fixing the problem now requires removing the strip lining. Simple enough. But now you have flammable product behind the lining. That cannot be cleared.

Strip lining is a short term solution and a long term PITA for the inspection, plant engineering, and maintenance crews.

No restriction on the concept from a Codes or Standards perspective that I know of, though.

jt

 

[MJCronin]

Is there some reason why you cannot blast and coat the same areas..???

Is there more to this story ?

 

[rab1944]

1. This is the customer idea.
2. I'm a tanky and not a painter.
Thanks for the response.