| 摘要 |
Apparatus for controlling start-up and shut-down of a pump of a water distribution network, comprising:
- a chamber (12) provided with an inlet (13) which can be operatively associated with the delivery side of a pump and an outlet (14) operatively connected to the water network,
- a system (18) for detecting and/or measuring the flow of water through said outlet (14) adapted to emit a start-up signal for the pump upon reaching a preset flow threshold value,
- a device (21) for detecting and/or measuring the pressure in said chamber (12) adapted to emit a start-up signal for the pump of the network upon reaching a preset value defined "cut-in pressure",
- electronic means (17) for controlling and managing operation of the device. The distinctive feature of the invention resides in the fact that it comprises a plurality of preset cut-in pressure values stored in said electronic control and management means, and interface means (Q) available to the user to select one of the preset cut-in pressure values of said plurality. |
