Abstract: A distance retainer for media pipes to be guided through protective pipes is provided with a ring body consisting of several ring segments which are in turn provided with radially projecting, axially oriented sliding runners and which are manufactured from plastic. Connecting elements which engage with each other are provided on the ends of the ring segments that face towards each other. The axial recesses of these connecting elements that lie axially adjacent to each other are penetrated by an axial connecting mechanism. The invention provides that in order to be able to adapt the diameter to the particular media pipes within greater diameter ranges and therefore more simply, the connecting elements that engage with each other lie on top of each other in a radial direction and one connecting element is provided with two or more recesses which lie behind each other, a distance apart, in the peripheral direction.

Abstract: The present invention discloses a glide tube ring for tube-in-tube systems, pipe conduits and the like. The glide ring tube according to the invention is provided with axially spaced glides running parallel to each other whose material has the lowest possible friction coefficient, especially a plastic, preferably a fiberglass-reinforced polyethylene, polyamide or the like, in which the glide tube ring is attached to the central tube forming a closed ring that centers this tube in the protecting tube, pipe conduit or the like.