Regarding the seal surface design and gasket selection for high-pressure flanges (such as PN320/400)

2017-11-15View Original

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GB/T 9115 specifies raised-face flanges suitable for PN400, but no gaskets corresponding to such high pressure are available. Since this type of flange is specified in the standards, it should work, but there are difficulties in choosing the gaskets. What do you all think?

Reply #22018-11-06

I have the same doubt. Have you found it? ? ? ? ? ? ? ? ? ? ? :'(:'(:'(:'(:'(

Reply #32018-11-06

Select the RJ flange face, and choose an elliptical or octagonal gasket

Reply #42018-11-06

On the first page of GB/T9115-2010, detailed regulations are provided regarding the types of sealing surfaces. Regarding the selection of gaskets, they are determined based on the dimensions of the sealing surfaces. On page five, for those with ≥PN40, the dimensions of the sealing surface are already specified, so the size of the gasket can also be calculated.

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Regarding the seal surface design and gasket selection for high-pressure flanges (such as PN320/400)

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