Device by means of which a supply container is connected in a sealed manner to a consumer element, and consumer element

A device by which a supply container containing a medium subjected to positive pressure is connected in a sealed manner to a consumer element, comprising:

• a consumer-element body which has a cutout with an internal thread;
• a connection element for connecting to the supply container having a valve, an annular sealing surface on an end side, an external thread for being screwed into the internal thread, an opening element for connecting to the consumer-element body and intended for opening the valve automatically when the connection element is screwed into the consumer-element body, and an annular sealing element which, on the one hand, interacts with sealing action with a base of the cutout and against the bottom annular sealing surface of which the sealing surface comes into abutment when the connection element is screwed in;
• and
• wherein the bottom annular sealing surface of the sealing element is arranged in relation to the opening element such that—when the connection element is screwed in—it interacts with sealing action with the sealing surface before the valve is opened, and the sealing element is designed in order to accommodate at least the displacement for the sealing interaction with the connection element and the opening displacement of the valve.