Abstract: A regulating flap reduction gear for an electrically driven regulating flap for regulating a gas or liquid volume flow includes two parallel bearing plates between which gear parts are rotatably arranged. A plurality of spacers keep the two bearing plates at a distance from one another. The plurality of spacers are designed as tabs of one, first bearing plate, which are bent by 90° from the plane of the first bearing plate and have at least one lateral projection. The tabs are inserted with their free tab ends into plug-in openings of the other second bearing plate until their at least one lateral projection rests against the second bearing plate.

Abstract: A volumetric-flow controller for adjusting a control flap is movably mounted within a flow channel. A measurement channel has a channel inlet and outlet for connection to the flow channel forming a separate bypass channel branched from the flow channel. A differential pressure sensor arranged in the measurement channel measures a differential pressure prevailing in the flow channel and outputs a corresponding electrical measurement signal. A control unit for electrically activating a flap drive in dependence on the electrical measurement signal outputted by the differential pressure sensor sets a desired volumetric flow rate in the flow channel. At least one air quality sensor arranged in the measurement channel measures an air quality prevailing in the flow channel and outputs a corresponding electrical measurement signal. The control unit electrically activates the flap drive in dependence on the electrical measurement signal outputted by the at least one air quality sensor.

Abstract: A regulating flap reduction gear for an electrically driven regulating flap for regulating a gas or liquid volume flow includes two parallel bearing plates between which gear parts are rotatably arranged. A plurality of spacers keep the two bearing plates at a distance from one another. The plurality of spacers are designed as tabs of one, first bearing plate, which are bent by 90° from the plane of the first bearing plate and have at least one lateral projection. The tabs are inserted with their free tab ends into plug-in openings of the other second bearing plate until their at least one lateral projection rests against the second bearing plate.

Abstract: A volumetric flow controller for air conditioning and ventilation systems for displacing a control flap that is adjustably supported in the interior of a flow channel includes a differential pressure sensor for measuring a pressure difference prevailing in the flow channel. A control unit displaces the control flap depending on the pressure measured by the pressure sensor for adjusting a target volumetric flow in the flow channel. A first operating element is for selecting one of a plurality of parameters, in particular of control and/or configuration parameters. A second operating element is for adjusting the value of the respective selected parameter. A display is for displaying the currently set value of the respective selected parameter. The first operating element is a push button, a touch-sensitive switch, a touch-sensitive control panel or a contactless operating element for advancing the respective parameter displayed in the display.

Abstract: A volumetric flow controller for air conditioning and ventilation systems for displacing a control flap that is adjustably supported in the interior of a flow channel includes a differential pressure sensor for measuring a pressure difference prevailing in the flow channel. A control unit displaces the control flap depending on the pressure measured by the pressure sensor for adjusting a target volumetric flow in the flow channel. A first operating element is for selecting one of a plurality of parameters, in particular of control and/or configuration parameters. A second operating element is for adjusting the value of the respective selected parameter. A display is for displaying the currently set value of the respective selected parameter. The first operating element is a push button, a touch-sensitive switch, a touch-sensitive control panel or a contactless operating element for advancing the respective parameter displayed in the display.

Abstract: In accordance with the invention, a volume flow control system, in particular, for air conditioning systems and ventilation systems, for adjusting a butterfly valve that is pivotably disposed inside a flow channel, comprises a differential pressure sensor for measuring a differential pressure that prevails in the flow channel, a control unit that adjusts the butterfly valve in dependence on the pressure measured by the pressure sensor for adjusting a desired volume flow in the flow channel, and means for adjusting control parameters, wherein the means comprise a first switch for selecting one of a plurality of control parameters, and a second switch for adjusting the value of the respectively selected control parameter.