Ring Joints
Description
Ring Joint gaskets are metallic gaskets used in applications involving extreme pressure and temperatures. Typical Ring Joint gaskets come in oval or octagonal shapes, but standard and custom-made dimensions are available. Pressure-energized ring joint gaskets are also available. Ring Joints are manufactured in compliance with API-6A and ASME B16.20 standards, and many alloys are available.
Application
Ring Joint gaskets are only used on flanges with special grooves for the containment of the ring. ASME flanges are specified up to Class 2500, while API flanges are specified up to Class 10,000.
Sealing Characteristics
- The metal-to-metal contact used in Ring Joint flanges provides reliable sealing for extreme pressures and temperatures.
- Octagonal rings allow for the accurate calculation of gasket seating stresses, thus preventing underloading or overloading of the flange.
- In applications with a history of leakage, octagonal rings can be enhanced by adding Kamprofile serrations and APX2 flexible graphite. These KAM-ORJ gaskets not only seal better but can accommodate some amount of existing flange groove damage.
Chemical Compatibility
Subject to materials, RTJ Gaskets can be used in a wide variety of media.
Available Options
- Available in many standard metallurgies to match flange material.
- Available in oval or octagonal cross sections