API6A Ring joint gasket

Ring joint gaskets is according to the different of metals,the gaskets' hightest temperature used is 600. API type R oval and octagonal ring joints' highest pressure used is 700 bar,They are used on pipe flanges and valvebonnets high pressure steam,gas,hot oil,oil gas,solventvanor,oxygen at high temperature in oil refineries,petrochemical plants,thermal power plants and steam turbined vessels. API type RX and BX pressure energized ring joints'highest pressure used is 1400 bar.They are used on ring type joint flange at high pressure service in oil mining equipments.