Abstract: The invention concerns a float-controlled flow-control devie for the outlet from a sewage system, especially a rain basin. The bearings for the pivots (7 & 8) that the float arm (4) and the shutter (2) rotate on are mounted on a displaceable structure (3). This makes it possible to vary the outflow volume to be controlled even when the device is in operation, and hence to control it remotely as well.

Abstract: A throttling unit (1) is joined with a pressure detector by a regulating device for controlling the discharge of a fluid from a container. The regulating device has a throttling unit (3) that is designed to pivot on an axis in a manner permitting regulated closure across the diameter of the run-of opening (2'). The throttling unit is joined in a manner permitting operative movement with a pressure detector (9), which, in dependence upon water pressure, governs the movement of the throttling unit in the closure diameter of the run-off opening. The regulating device is set in a throttling chamber (21), which details on one side an output control area (10) open to the atmosphere and a run-off area (2). Because of the compactness of structure of the throttling unit and the pressure detector, the space required for the regulating device is extremely small.