Ring Joint Gaskets

Description:

Ring joint gaskets are metallic sealing ring suitable for high pressure and high temperature applications. They are manufactured in two kinds of cross section: octagonal and oval accordance. Ring joint gasket are used in connection with RTJ flange, generates a strong seal between two mating flanges. When the flanges are fixed by bolts, ring joint gasket is squeezed into the groove of the flange, forming a tight seal between the mating flanges. In order to avoid destruction of the flanges, the material of the ring joint gaskets must be softer than the material of the flanges. Metallic gasket is fabricated from one or a combination of metal to the desired shape and size. Common metallic gasket is ring-joint gasket and lens rings. It is suitable for high-pressure and temperature applications and require high bolt load to seal.

Material of Construction

The gasket material is selected on a number of grounds primarily; chemical compatibility with the media and the hardness of the flange. The gasket material ideally needs to be roughly 30 Brinell less than the flange material to ensure sufficient deformation of the gasket without damaging the flange facing.

Common Materials of RTJ

Please note that the properties shown here are typical and suitability for actual application should always be determined by a suitability qualified Engineer. Spacifications are subject ot change without notice.

Shapes

Ring joint gaskets are either oval or octagonal in cross section. Exact shape depends on style of gaskets.