Fitting for Producing a Leaktight Connection Comprising a Retaining Element with Contact Surfaces

A fitting for producing a leak-tight connection with a pipe end, comprising:

• at least one pressing portion configured for insertion of a pipe end and compression;
• at least one sealing element;
• and
• at least one retaining element,
• wherein the sealing element and the retaining element are arranged in the pressing portion,
• wherein the retaining element is substantially annular,
• wherein the annular form defines a circumferential direction and an axial direction,
• wherein the retaining element has two ends in relation to the circumferential direction,
• wherein the retaining element has at each of the two ends at least one contact surface which extends at least partially in the circumferential direction,
• wherein the contact surfaces are configured to be brought into contact with each other upon compression of the pressing portion, and
• wherein the cross-section of the retaining element in the circumferential direction is formed so as to be substantially elliptical or substantially rectangular, and
• the cross-section of the retaining element in the circumferential direction has at least a recess, wherein, with the at least one recess, cutting edges which can be pressed into the material of the pipe end and/or into the wall of the fitting arise in fee cross-section.