GAS TIGHT PIPE CONNECTION OF INNER AND OUTER PIPE PARTS

摘要

A gas-tight pipe connection that has inner and outer pipe parts which when joined create a gas tight seal. The inner pipe part has a press fit surface, a stop surface, and a transition surface between the press fit surface and the stop surface. The outer pipe has an outer collar, a press fit surface, and a stop surface as well as a recess in its interior wall which extends from the press fit surface to the stop surface. When the outer pipe part is joined with the inner pipe part, the connection forms a press fit region, a stop region, and a transition region, where the transition region forms a coaxial intermediate space or hollow space.

主权项

1. A gas-tight pipe screw connection, comprising a connecting region wherein parts in the connecting region are connected by contact-pressing and insert-pressing, the parts comprising an outer pipe part and two inner pipe parts, the outer pipe part having an outer collar, wherein the connection is established using three regions, wherein the connecting regions comprise press fit and stop surfaces of the pipe parts or press fit surfaces that cooperate with the pipe parts and collar, and that have a truncated cone shape, and that are inclined in the end direction from the inner pipe part toward the pipe axis, and at the front comprise stop surfaces which have a truncated cone shape and are directed counter to said press fit surfaces and a transition that is formed by the press fit and stop surface of the connected parts for said parts without contact with a coaxial intermediate space or hollow space.