Abstract: A connector assembly for allowing a free-flowing medium to pass through includes: a hollow female element with a transverse closure wall and passage openings which are formed in the side wall, a male element which can be inserted into the female element and can be coupled thereto, an adapter socket, inside which the female element can be displaced in the axial direction between a position in which it closes off the flow of medium and in which the passage openings are closed off by the adapter socket, and a position in which it allows medium to flow through and in which the passage openings are not closed off by the adapter socket. The female element is provided, at a distance from the transverse closure wall, with connecting elements which can form a connection with connecting elements arranged on the male element and/or a coupling piece which is coupled thereto.