The Ring Type Gasket is initially developed for high Pressure/temperature applications found in the petroleum industry and is primarily used in the oilfield on drilling and completion equipment.However. Today this product range can also be found on valves and pipework assemblies. Along with some high integrity pressure vessel joints.

Standard Style R Ring Type Joints are manufactured in accordance with both API 6A and ASME B16.20 in both oval and octagonal configurations, both types are interchangeable on the modern octagonal type grooved flanges. As with all solid metal Ring Type Joints including Style R. It is recommended to replace the ring when flange connectio is broken.