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Asbestos Gasket

Asbestos Gasket

Asbestos Gasket

(OP)
Can we use asbestos gasket for potable water piping ?

RE: Asbestos Gasket

Most jurisdictions prohibit the use of asbestos as a gasket material in potable water systems even though there is still a lot of cementious asbestos pipe in service.

You best bet is check with the local jurisdiction that oversees the potable water supply.

RE: Asbestos Gasket

Can I ask why you would want to do that?

RE: Asbestos Gasket

(OP)
I am working in water project at which BA-U Tesnit gasket is approved,this material is asbestos-free. after checking the delivered material I observed that some of the gaskets are Tesnit kemit super, which is asbestos gasket, I am planning to reject them, but I need to know alittle about the effect of using asbestos with potable water ??

RE: Asbestos Gasket

I would send the wrong gasket material back without any explanation other than it is not the material specified.  

Also being in the USA I wouldn't even carry an Asbestos to jobsite that involved potable water.  There are just too many other food grade/potable water materials available.

RE: Asbestos Gasket

In most states of the USA it is my understanding materials in contact with potable water are required to be listed per NSF/ANSI STANDARD 61 Drinking Water System Components - Health Effects.  While I do not know how strongly this is being enforced in this particular aspect, this includes gasketing materials for water systems.  An example of a gasket manufacturer who has gone through such formulation, testing, listing etc. processes is Specification Rubber Products, with resulting listings available at
http://www.nsf.org/Certified/PwsComponents/Listings.asp?Company=42910&Standard=061.

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