Re: Gasket Sealant for Sulfuric Acid Service

From: <Geoff>
Date: Tue Oct 04 2005 - 19:39:00 EDT

Thomas,

You could consider putting two halves of a split flange behing the PVC flange and thus provide a bearing surface to apply an even load to the gasket and thus achieve a seal.

Geoff Stone

Thomas Laupa <tlaupa@frii.com> wrote: Gents:

we have a sulfuric acid system constructed of PVC. one of the flanges, PVC with a soft viton gasket, is exhibiting minor leakage. we have installed a new gasket to no avail, and believe that one of the mating surfaces is slightly damaged. of course, the PVC material keeps us from "cranking down" too tight.

i think a gasket sealer is worth trying, but all of my supplies shy away from "sulfuric acid". a web search has also left me dry.

any general thoughts on the proper sealant material?

>

Thomas G Laupa PE
Senior Engineer - Nalco Company
Office Address: 1601 Diehl Road, Naperville, IL, 60563 Courier Address: 1003 Remington, Fort Collins, CO, 80524 970-227-5127
800-493-5009 fax

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[Non-text portions of this message have been removed] Received on Tue Oct 04 19:39:00 2005