Ring Joint Gaskets Oval and Octagonal Oval cross-section Industry Ring Joint Gaskets and Octagonal cross section Ring Joint Gaskets are used in pressures up to 10,000 psi The hardness of the ring gasket should always be 30% lesser than the hardness of the flanges to prevent flange deformation Dimensions and Tolerances for Ring Joint Gaskets and Grooves are covered in API 6A and ASME B16.20. We stock a wide range of sizes and materials ready for immediate shipment from Ring Numbers R11 to R105.
