Re: [PipingDesign] hi Bolts matrial for different flanges

Please dont overlook the fluid temperature when utilizing insulating gasket.As I recall insulating gasket are applicable up to certain Temp. limit

Kkaled
--- dd jdh <saduemk@yahoo.co.in> wrote:

> You mean high tensile bolting material???
> Anyways, Metallic gaskets shall be avoided.
> For a standard design, Insulation kit is preffered
> ,so that better leakage and galvanic corrosion
> prevention can be acheived.
> Eventhough the prevention of galvanic corrosion is
> secondary, this may inturn cause leakage thru the
> flange facing when the CS-SS face boundary got
> corroded, as a result of galvanic action.
>
> regards,
>
> sadanand
>
> sviswan@technip.com wrote:
> What is hi Bolts?
>
> The flange standard that you may be using gives the
> suggested bolting
> material to be used. Say ASME B16.5 for instance.
> A metal gasket would mean an ring type joint (RTJ).
>
> The primary consideration on flange bolting should
> to prevent possible
> leakage. prevention of galvanic corrosion should be
> secondary.
>
> Sajit
>
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>
>
>
>
>
>
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Received on Sun Nov 25 11:12:00 2007