Abstract: A connector, particularly for connecting pipes, includes a base body, a sealing element and a member for fixing a pipe inserted into the connector, wherein the base body has an insertion opening on one side for the insertion of a pipe and the sealing element is arranged in an essentially cylindrically symmetrical recess set embedded in the base body and wherein the essentially cylindrically symmetrical recess at least partly has a smaller depth in the region between the position of the inset sealing element and the side of the recess facing the insertion opening of the base body than in the region of the position of the sealing element.

Abstract: A fitting for connection with a pipe end configured to have a medium flow therethrough, the fitting including a connecting section having a circumferentially-extending groove, a sealing element arranged in the grove, and a protection sleeve configured to be arranged over the groove and displaceable between a first position and a second position. The first position of the protection sleeve covers the groove at least partially and the second position of the protection sleeve exposes the groove at least partially. An amount of exposure of the groove is greater in the second position than an amount of exposure of the groove in the first position.

Abstract: A connector, particularly for connecting pipes, includes a base body, a sealing element and a fixing means for fixing a pipe inserted into the connector, wherein the base body has an insertion opening on one side for the insertion of a pipe and the sealing element is arranged in an essentially cylindrically symmetrical recess set embedded in the base body and wherein the essentially cylindrically symmetrical recess at least partly has a smaller depth in the region between the position of the inset sealing element and the side of the recess facing the insertion opening of the base body than in the region of the position of the sealing element.

Abstract: The invention relates to a fitting (1), particularly for the installation field, for the connection with an end (2) of a pipe (3) through which a medium can flow, having a connecting section (4) which has a circumferentially extending groove (5), in which a sealing element (6) is arranged. In order to ensure an optimal tightness of the sealing element (6) also on a long-term basis, it is suggested by the invention that a protection sleeve (7) is provided which can be displaced in the axial direction between a first position and a second position and which, in the first position, covers the groove (5) at least partially and, in the second position, releases (exposes? translator) the groove (5) at least partially. Furthermore, the present invention relates to a corresponding joining arrangement (13) and to a corresponding production process.