Pressing jaw, method for producing a non-detachable pipe joint, fitting and system consisting of a pressing jaw and a fitting

A fitting for a metallically sealing joint with at least one metallic pipe, comprising

• a metal fitting base body and
• a press sleeve,
• wherein the metal fitting base body has a cylindrical socket with an internal diameter adapted to an external diameter of the pipe to be joined,
• wherein the press sleeve has at one end a receiving portion for receiving an outermost end of the cylindrical socket,
• wherein the press sleeve has a pressing portion, an inner profile of which tapers in an axial direction to a diameter smaller than an external diameter of the metal fitting base body, such that the inner profile of the pressing portion is configured during an axial displacement onto the metal fitting base body to deform the outermost end of the cylindrical socket radially inwards so that the outermost end of the cylindrical socket cuts into material of the pipe,
• wherein in a starting position, the metal fitting base body is partly inserted into the press sleeve,
• wherein the press sleeve further comprises an outer obliquely deflecting bearing surface and the metal fitting base body further has an outer clamping ring being secured and recessed in a longitudinally centralized groove in the fitting base body and the clamping ring has an outer bearing surface which runs in an opposite direction to the bearing surface of the press sleeve, and wherein a longitudinal space is maintained between the clamping ring and the press sleeve.