What are the gasket codes and seal codes?

2017-04-26View Original

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What are the gasket codes and seal codes? I saw in the documents that the gasket code is XB350 and the sealing code is RF. Could some expert please explain this? It would also be great if you could share relevant documents. Thank you

Reply #22017-04-26

Take a look at JB/T 90-2015 – Coiled gaskets for pipeline flanges

Reply #32017-04-27

Does RF refer to the convex or concave surface of a flange? I’m not quite sure about this

Reply #42017-04-28

If you take a look at HG20592, it will be clear that RF represents the sealing surface type for flanges, which is a raised-face seal

Reply #52017-05-02

RF refers to a flange sealing surface that is convex; XB350 is the code for asbestos rubber material

Reply #62017-05-02

For manhole standards, just refer to those standards

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What are the gasket codes and seal codes?

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