O-ring-like-spreading gas seal for providing flange connection of pipe, has cut with profile provided around periphery parallel to surfaces so that cross section guided inwardly through seal, has Y shape on contact zone of seal

摘要

The seal (12) has a wedge-shaped cut (E) with v-profile provided around an outer periphery parallel to an upper surface (So) and a lower surface (SA) of the seal so that a cross section guided inwardly through the seal perpendicular to surfaces from outside, has Y shape on a contact zone (3) of the seal, which is made of a firm smooth sealing material. A set of flanges with corresponding sealing surfaces is connected with each other perpendicular to a pipe axis. Flat sides of the seal are oval, rectangular, square or x-shape.