Clamping ring and method of forming the same

A method of forming a clamping ring to be used on a flexible cross-linked polymeric pipe when making a pipe connection, the method comprising:

• a) providing an extruded pipe part made of a cross-linked polymeric material, wherein an inner diameter of the extruded pipe part is formed bigger than the outer diameter of the flexible cross-linked polymeric pipe onto which the clamping ring is positioned before making the pipe connection;
• b) providing an injection molded annular part, wherein an inner diameter of the injection molded annular part is formed smaller than the inner diameter of the extruded pipe part;
• and
• c) bonding the extruded pipe part and the injection molded annular part to form a unitary structure having an inward protruding stop edge at one of end of the bonded extruded pipe part and the injection molded annular part;
• wherein the inner diameter of the annular part is constant along a length of the annular part and of the stop edge of the annular part;
• wherein the inner diameter of the annular part is greater than the length of the annular part;
• and
• wherein the inward protruding stop edge is radially non-continuous.