Abstract: A method for producing a curved tubular connection element has at least the following production steps: machining a linearly extending metal tube piece (10) with a specifiable length while incorporating connection geometries (12, 14) for receiving separate connection parts (18, 20) to connect a media-conducting piping; carrying out a bending process for the tube piece (10) produced by being machined with a specifiable bending radius, preferably up to 90 degrees; and attaching each connection part (18, 20) to the respective connection geometry (12, 14) that can be paired with it.

Abstract: The invention relates to a valve comprising a valve housing (1) and a manually actuatable valve part (5) which is arranged therein in a longitudinally displaceable manner, said valve part controlling the free passage cross-section for fluid between the two connection points (10, 17) in the valve housing at given adjustment positions. The valve is characterized in that a latching device (55, 57) is provided between the valve housing and the valve part, which lets the valve part assume its re¬spective adjustment position only in stages and in a releasable manner.

Abstract: The invention relates to a coupling device having two releasably interconnected coupling parts (1, 3) which are movably arranged relative to one another in at least one direction of rotation, characterized in that each coupling part (1, 3) has a plurality of fluid channels (x1-x3, y1-y3,) which are separated in groups from each other and open into respectively assignable connecting spaces (39, 41, 43). Said connecting spaces are located at adjacent end sides (15, 17) of the coupling parts (1, 3) and are separated from one another within a coupling part (1, 3).

Abstract: A connection device, in particular for the realization of a rotary connection for a connection component (71, 89), with a housing (1), which comprises a connection point (7) for a fluid conveying conduit, such as a pneumatic line, and a bearing arrangement (31), by means of which an axial or shaft-type connecting part (24) is mounted so as to be rotatable relative to the housing (1), said connecting part comprising an additional connection point (27) for the connection component (71, 89), is characterized in that the bearing arrangement (31) comprises at least one rolling bearing (35), which is in contact with the housing (1) via the outside of its outer race (55) and with the rotatable connecting part (24) via the outside of its inner race (49).

Abstract: The invention relates to a coupling device, comprising two coupling parts (1), which can be detachably connected to each other and which have holders (9) for receiving media-conducting and/or electrically conducting connector parts (11). Said coupling device is characterized in that at least some of the connector parts (11) are provided with a positioning aid (69), which interacts with at least one further positioning aid (63) in the associable coupling part (1) in such a way that the connector part (11) in question is received in said coupling part (1) in a non-interchangeable and accurately fitting manner.

Abstract: A coupling device, in particular a multiple coupling (1), connects a first line portion to a second line portion by a first coupling body (3) and second coupling body (5). A connection unit (23, 25) can be inserted into an accommodating opening (41, 42) in each coupling body (3, 5). A plug-in connection between line portions having electric conductors has an electrical connector (63) with plug-shaped and/or socket-shaped contact elements (67, 69). The connection unit (23, 25) is a cartridge with a single-part, sleeve-shaped housing (37) having a through-passage (39) accommodating the connector (63).