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Regarding the selection of the sealing surface type for valve flanges?

2008-02-02View Original

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At what general operating temperature should a hard-seal design be chosen for RT? Thank you
Reply #22008-02-02
Generally, it should be over 600 degrees. If it’s below 600 degrees, a graphite gasket can be used for sealing
Reply #32008-02-02
That high? The highest one in my setup is only 250, so can I just use the wound type for all of them?
Reply #42008-02-02
Where is it from? Is it still the sealing surface of the valve body that connects to the pipeline flange? At 250 degrees, ordinary gaskets are sufficient for use on pipeline connection flanges

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