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API Ring Joint Gaskets

API Ring Joint gaskets are available in octagonal or oval cross-section. Our API Ring Joint Gaskets are used in applications up to 10,000 psi. Where new flanges are to be used, we recommend the higher efficiency octagonal cross-section gaskets. Oval cross-section gaskets are still a very effective gasket solution where the application requires sealing on existing flanges with round bottom grooves.


Dimensions for API ring joint gaskets and grooves are covered in ANSI B16.20 and API6A.


We stock a wide range of sizes:


R11 to R105, BX, and RX


These API ring joint gaskets are available for immediate shipment.