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Ring joint gaskets differ from full-face gaskets. Ring-joint flanges sit in a groove machined into each half of the flange, whereas full-face gaskets require no groove, sit parallel to the flange face, and cover the entirety of the face.

Ring joint gaskets work by creating a seal between the two flange faces under the compressive loading of the flange bolts. When under load the gasket deforms and flows into the microstructure irregularities of the flange groove in which the RTJ gasket sits.

Ring joint gaskets are important because they provide a strong seal for demanding applications. Ring joint gaskets can withstand up to 20,000 psi at elevated temperatures and in corrosive environments.

Ring joint gaskets provide a reliable seal in several applications that operate in high-pressure and high-temperature flange environments.

No, ring joint gaskets and spiral-wound gaskets are not the same. Ring joint gaskets are made of one material, whereas spiral wound gaskets are made of an inner and outer ring and a sealing element.

A ring joint gasket is a sealing device used on a ring-type joint flange which is used for high-pressure applications. A ring joint gasket is unique as it uses metal rather than composite or elastomeric materials. The RTJ gasket sits in a groove machined into each half of the flange joint. When the flange bolts are tightened, the soft gasket material flows into the harder flange to make a microfine seal.