Water delivery device for water pipe in public and private building, has bistable magnetic valve provided with stable opening and closing positions, where valve is opened and closed by control module over control pulses
摘要
<p>The device has a control module (12) connected with a checking facility for a currency to preset a water volume according to the currency. A bistable magnetic valve (20) is provided with stable opening and closing positions, where the valve is opened and closed by the module over control pulses. A water meter detects delivered volume and generates a signal to the module. The device is operated by a battery or a rechargeable battery.</p>
