Arrangement to control water flow in irrigating installation fed by water supply connected to pump has device which produces control signal emitted as radio signal to switch on of off water supply to feed pump

摘要

On the connection armature (10) of the tube or hose pipe from the pump (2), a device is provided which, when the valve of the armature on the outflow side is opened or closed, produces a control signal for switching on or off the switch (4) in the current supply to the feed pump. This control signal is sent out by the device as a radio signal and a receiver for the said radio signal is arranged on or in the said switch. The device producing and transmitting the control signal consists of a control unit including transmittor and actuator located on the movable parts of the valve in the connection armature. The latter is operationally connected to one part of the control unit.