TYPES OF RTJ
R TYPE
RX TYPE
RX TYPE
R Type Ring Joint Gaskets are manufactured to the specifications of both API 6A and ASME B16.20. They are manufactured in both oval and octagonal configurations which are interchangeable on modern flange grooves.
RX TYPE
RX TYPE
RX TYPE
RX Ring Joint Gaskets are a pressure-energized modification of the standard style R ring joint gasket. RX gaskets are designed to fit the same flange grooves as a standard style R.
BX TYPE
RX TYPE
OVAL TYPE
BX Ring Joint Gaskets are only suitable for API 6 BX type flanges. These gaskets are used for the Class rating of 2000 to 20000 psi. The BX type gasket has a pressure passage hole for pressure equalization on each sealing face sides.
OVAL TYPE
RUBBER MOULDED
OVAL TYPE
The oval section ring joints were originally designed for the now obsolete round bottom groove. Both the Oval and the Octagonal cross section are interchangeable on the flat bottom groove design.
OCTA TYPE
RUBBER MOULDED
RUBBER MOULDED
The Octagonal cross section has a higher sealing efficiency than the Oval cross section and is therefore preferred.
RUBBER MOULDED
RUBBER MOULDED
RUBBER MOULDED
This is a seal consisting of a ring joint gasket totally encapsulated in a profiled nitrile rubber coating.
The rubber coating provides added sealing and protects the flange surfaces as well as providing corrosion protection. Rubber coated gaskets are used for pressure testing to minimize damage to the flanges.
Other Specifications
Material
Material Classification with respect to Hardness and Marking.
Shape of RTJ
Special RTJ gasket comes with a hole in the center for pressure equalization in subsea pipeline application. You can see the different type of RTJ gasket in the image.