A method of interconnecting, sealed against contamination, the ends of elongate elements such as tubes or pipes by at least two cooperating connecting means each having an inlet for an associated end and each having an outlet for connection to each other, each connecting means having a connecting plane, into which the outlet opens, covered by a protective film, the method comprising:
- moving into engagement the connecting planes of the connecting means with the outlets facing each other;
- and
- moving a locking element, slidably arranged on one connecting means, in a controlled manner and without interruption of the sliding movement, at least partially onto the other connecting means to a distinct end position, while at the same time the protective film covering the outlets are removed by the locking element when it is moved and while at the same time the outlets are sealingly pressed against each other.