Patent attributes
The invention relates to a device which is used for cleaning and/or disinfecting a keg coupler (10) which has a collar-like lower section (14) with segment-like projections (18). The lower section (14) is provided on its periphery with a cylindrical external peripheral surface (16) and is provided on the inside with a recess which is formed by an axially recessed radial bearing surface (19), a cylindrical internal peripheral surface (20), a lower radial surface (21), and a peripheral surface (22) divided into segments. An adapter (30) can be fitted onto the keg coupler (10). The adapter (30) comprises an applying unit adapted to apply a cleaning liquid to a surface of the recess. The adapter (30) comprises an annular sealing insert (60), into which the keg coupler (10) can initially be fitted with the cylindrical external peripheral surface (16) in a loose state in a first operating position and can then be sealed in a liquid-tight manner in a second operating position, in such a way that a cavity (94) is formed which is delimited at least by the radial bearing surface (19), the cylindrical internal peripheral surface, the lower radial surface (21), the peripheral surface (22) divided into segments, and a surface (88) of the adapter (30).
