Abstract: An apparatus for selective combination of at least one first stationary pipeline for liquids with a plurality of second stationary pipelines by means of a movable pipeline connection and a coupling system, wherein the first and second pipelines have each a movable connecting pipeline which at the free end contains a connecting head, the connecting heads of the first pipelines being guided by means of first guides along parallel first axes and the connecting heads of the second pipelines being guided by means of a second guides along parallel second axes which extend perpendicularly to the first axes, the connecting heads having wound off end portions, the ends of which hold first coupling parts having front surfaces all lying in approximately one coupling plane, the second coupling parts have a circular radial retaining edges and the first coupling parts have a coupling annular segment with a radial flange section extending only over an arch length of 180 degrees or less and gripping back the retaining edge o