Ring joint gasket with octagonal surface

• gasket acts as a convex gasket, thereby creating a larger contact or sealing surface
• sealing surface pressure increases to a lesser extent to the increase of the bolt force

It is important that the ring material itself always has a softer texture than the flange. The heavy load on the ring joint gasket leads to a flow of material in the groove face, which consequently lead to the tightness of the sealing connection.

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