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Anonymous Poster

Annular Plate of Atmospheric Tank

06/12/2008 3:46 AM

I have a tank of 500,000 bbls having an annular plate with a flexible rubber / seal in between the annular palte and the foundation. Can someone explain why a gap is provided between the annular plate and the foundation and what is teh function of the seal.

rgds

Mogambo
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PWSlack
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#1

Re: Annular plate of atmospheric tank

06/12/2008 3:57 AM

To even out weight distribution?

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pipewelder
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#2

Re: Annular Plate of Atmospheric Tank

06/13/2008 11:15 AM

It could be there for expansion and to seal the bottom of the tank from moisture and corrosion from outside water seeping in under the tank. We have had a problem with this on allot of our tanks when the grout cracks under the annular ring and moisture gets in under the tank. I have used a rubber type material to replace the grout in the past and it works very well. I forget the name of the company that makes the product we use but is not real expensive and very easy to install when compared to re-grouting around a tank.

pipewelder

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