METHOD FOR CONNECTING A PIPE AND A PIPE COUPLING, LINK BETWEEN A PIPE AND A PIPE COUPLING, AND CONNECTOR USED

摘要

A pipe end is joined to a pipe coupling by compressing it onto a pipe coupling sleeve having an axial fixing location spaced from another axial fixing location or an axial spring. A pipe (2) end is joined to a pipe coupling (1) by initially pushing the pipe onto a support sleeve (3) of the coupling and then either (a) compressing the pipe (2) at two axially spaced locations to leave an intermediate piece (20) which is subjected to an axial compressive pressure and is provided with a free space for expansion; or (b) pressing the pipe at a location remote from the pipe end and applying an axial force onto the pipe by a spring on the coupling. Independent claims are also included for (i) a connection between a pipe (2) and a pipe coupling (1), in which the pipe coupling has a support sleeve (3) with a blocking device (5), for axially fixing the pipe at a first pressing location remote from the pipe end, and a support device (9) or spring at a second pressing location remote from the sleeve end; and (ii) a pipe coupling for use in the above spring-type connection.