Ring Type Joints (RTJ)are gaskets for applications with very severe requirements, which are mounted in flanged joints with special sealing surface.
For example: type R rings with oval or octagonal section, RX or BX or lenticular gaskets.
Joint types are mainly used in petroleum, gas, petrochemical and chemical industries for specially sealed flanges exposed to high temperatures (up to 1000 °C) and high pressures (up to 1500 bar).
Dimensions according to ASME B16.20 or API Std. 6A.
The material of the ring will be specified by the customer.