Abstract: An anti-rotation connector for releasable coupling a field device with an inner room of a fluidic component via an anti-rotation counter-connector includes a connector stub, an access channel, and a first connector-sided anti-rotation structure. The connector stub has a stub body that extends along a connector axis. The access channel is coaxial with respect to the connector axis and extends through the stub body. The first connector-sided anti-rotation structure is arranged at a lateral stub body surface and is rotationally symmetric of order two with respect to the connector axis. The first connector-sided anti-rotation structure is engageable with a first counter-connector-sided anti-rotation structure of the anti-rotation counter-connector by relatively displacing the connector and the counter-connector towards each other. A locking connector for the releasable coupling includes the connector stub, the access channel, and a circumferential locking structure that is arranged at a lateral stub body surface.

Abstract: A control device (10?) comprises a control unit (10?) with a control element for controlling a fluid flow and being rotatable about a first axis (13) between an open position and a closed position, and a separate motor-driven actuator unit (24), which is mechanically coupled to said control unit (10?) to rotate said control element about said first axis (13) in a controllable fashion, whereby said actuator unit (24) comprises a driving part (25) with a driving element (31) being rotatable about a second axis (26), to be mechanically coupled to said control element in a coupling position to rotate said control element about said first axis (13), and a control part (28) for driving said driving element (31) in a controllable fashion. Said driving element (31) is removably coupled to said control unit (10?) by means of a spur gearing (Hirth serration) (22, 29).

Abstract: A control device (10?) comprises a control unit (10?) with a control element for controlling a fluid flow and being rotatable about a first axis (13) between an open position and a closed position, and further comprises a separate motor-driven actuator unit (24), which is mechanically coupled to said control unit (10?) to rotate said control element about said first axis (13) in a controllable fashion, whereby said actuator unit (24) comprises a driving part (25) with a driving element (31) being rotatable about a second axis (26), to be mechanically coupled to said control element in a coupling position to rotate said control element about said first axis (13), and a control part (28) for driving said driving element (31) in a controllable fashion. An easy and space-saving assembly is achieved having said driving element (31) removable coupled to said control unit (10?) by means of a spur gearing (Hirth serration) (22).

Abstract: This device has a drive output element for the actuation of a rotatable body which is separate or separable from the device, and it has a housing part in which the drive output element is rotatably mounted. The drive output element has a coupling part which is designed for rotational positive locking and which is designed to be mounted on a corresponding coupling connector of the shaft of the rotatable body. The device is characterized in that a quick-action fastener arrangement is provided for the detachable connection of the coupling part to the coupling connector. Further, the quick-action fastener arrangement can have manually actuable elements for enabling the quick-action fastener arrangement to be closed without tools.

Abstract: A device for controlling an airflow in a ventilation duct, comprising a pivotable air flap, which prevents an airflow in the duct when in the closed position. A housing of an actuator for the air flap, which may pivot freely about the relevant longitudinal mid plane, is mounted in the inner duct wall. The air flap, symmetrically or approximately symmetrically curved about the longitudinal mid plane of the ventilation duct and supported under load in a stable position on the duct wall, is rigidly fixed to the driveshaft of the actuator, by an angled lever arm, with a separation, in the region of the apex line thereof. The air flap rests roughly centrally, permanently on the points of contact with the inner duct wall, which move with the position of the flap, in a self-centering manner and, in the closed position, contacts the inner duct wall along a sealed, endless peripheral sealing surface.

Abstract: The invention relates to a device (12), for controlling an airflow (A) in a ventilation duct (10), comprising a least one pivotable air flap (24), which prevents an airflow (A) in the duct (10) when in the closed position. A housing (32) of an actuator for the air flap (24), which may pivot freely about the relevant longitudinal mid plane (LM), is mounted in the inner duct wall (34) of constant cross-section. The elastic air flap (24), symmetrically or approximately symmetrically curved about the longitudinal mid plane (LM) of the ventilation duct (10) and supported under load in a stable position on the duct wall (34), is rigidly fixed to the driveshaft (18) of the actuator, by an angled lever arm (20), with a separation (a), in the region of the apex line (S) thereof.