Wear ring

A wear ring for fitting to a corrugated pipe, comprising:

• two ring halves, the two ring halves being connectable to one another to form a ring;
• and
• a securing structure arranged on the two ring halves, the securing structure being adapted to attach the ring to the corrugated pipe;
• wherein the ring halves have connection structures that are configured to be connected to each other in a positive-locking manner in an axial direction, wherein the securing structure is formed by at least one ring insert which is radially movable on the ring and which can be locked in order to fix the ring to the corrugated pipe in a radially internal position on the ring,
• wherein the at least one ring insert includes extensions that project over a radial outer side of one of the two ring halves in a pre-assembly position,
• wherein the extensions have locking projections that are engaged with the ring half in a fixed position of the ring, and
• wherein, in the fixed position of the ring, closure caps can be applied to the extensions.