Coupling, for connecting selected hoses or tubes, has bellows inside coupling half with axially movable valve seat

摘要

The coupling has a bellows (26) fitted in the interior of the coupling half (2) with the axially movable valve seat (21). The bellows is connected on one side to the valve seat and on the other side to the casing guide (24) to provide a fluid-tight cover for the setting region (25). The bellows may have a fixing ring on the casing-guide end.