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Large Tolerance Seals

Large Tolerance Seals

Large Tolerance Seals

(OP)
I have an application where I need to seal between a steel superstructure and a concrete base.  The seal would be required to retain 8 bar water pressure.

Here is the problem.  The width of the gap that needs sealed ranges from 25mm to 150mm (1" to 6") due to a large variation in level across the concrete.  Grouts, epoxy resin etc are not feasible due to other constraints (the application is subsea).

Any suggestions?

RE: Large Tolerance Seals

Would grout filled flat jacks work?

RE: Large Tolerance Seals

(OP)
Please elaborate, I have not come across the term 'Flat Jacks' before?

RE: Large Tolerance Seals

Flat jacks are flat round bags that can be inserted into a narrow space and then pumped up with hydraulic fluid for temporary or grout for permanent installation.  Here is a link that illustrates them:

http://www.wbequipment.com/flatjacks.htm

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