The Ring Joint Gasket was initially developed for use in the petroleum industry, where high pressure/temperature applications necessitated the need for a high integrity seal. They are mainly used in the oil field on drilling and completion equipment. Ring Joint Gaskets are also commonly used on valves and pipework assemblies, along with some high integrity pressure vessel joints.
The style R Ring Joint Gasket is manufactured in accordance with API 6A and ASME B16.20 to suit API 6B and ASME B16.5 flanges.
The gasket material should be selected to suit the service conditions. It is always recommended that the gasket material is softer than the mating flanges. For specialized applications, Ring Type Joints can be machined from DUPLEX steels and other exotic materials such as Monel®, Inconel®, Incoloy®, and Hastelloy®.The Technical Department is available to advise on other materials.