The Flange Seals (all types) is a type of gaskets made to fit between two sections of pipe that are flared to provide higher surface area.
A Flange Seals is a type of gasket that fills gaps between flanges. These flanges are raised rings that surround the edges of pipes. They are used to connect multiple sections of pipe by compression. Flange seals used to be made of fibrous materials, especially asbestos.