ASME B16.20 R54 Octagonal Ring Gasket

Ring Gaskets are designed to seal by "initial line contact" or wedging action between the mating flange and the gasket. By applying pressure on the seal interface through bolt force, the softer metal of the gasket flows into the imperfections of the harder flange material, creating a very tight and efficient seal.

Standard Style R Ring Gaskets are manufactured in accordance with both API 6A and ASME B16.20 size/ratings. Available in both oval and octagonal configurations, both types are interchangeable on the modern octagonal type grooved flanges.

The Octagonal cross section has a higher sealing efficiency than the Oval cross section and is therefore preferred. These gaskets are manufactured as per API 6A / ASME B16.20 to suit API 6B and ASME B16.50 flanges.

The Octagonal cross section has a higher sealing efficiency than the Oval cross section and is therefore preferred. These gaskets are manufactured as per API 6A / ASME B16.20 to suit API 6B and ASME B16.50 flanges.

Recommended applications

Industries

• Oil & gas industry
• Petrochemical industry

• Flange connections
• Pipe connections

Materials

RTJ gaskets are available as standard in soft metal and in 304, 316 and stainless steels. Versions in other materials on request.

Style R ring type joints are manufactured on oval (2962/R) and octagonal profiles (2961/R).
Both styles are interchangeable in the modern flat bottomed groove.
Octagonal profile joints are interchangeable on flat bottomes groove flanges which have a 23 degree angle groove wall

Advantages

• Metal-to-metal contact creates a reliable seal
• Suitable for extreme pressure and temperature requirements
• Certified quality (including surface hardness)

we supplies ring joint gaskets (RTJ gasket) with the hardness numbers as follows: