The magnetic operated valve of Aqualone 1000
The bi-stable magnetic valve integrated in the Aqualone 1000 is actuated by the ferrite magnet attached to the controller float. This valve allows a flow rate of more than 1000 litres/hour, equivalent to the flow rate of most conventional valve controllers.
The valve comprises a membrane applied against a seat by a retaining spring in the closed position. The membrane as a pressure equalization canal between upper and lower faces thereof, the effect to prevent its opening when the ferromagnetic plunger is in its spring detent position, pressing the membrane and closing the pressure of the exhaust canal.
Since the plunger is attracted by the magnet, it is in the compression position of the spring, separated from the membrane, and releasing the pressure of the exhaust canal. The diameter of the exhaust canal being greater than the diameter of the pressure equalizing canal, this results in a pressure drop in the upper compartment of the membrane, causing the separation of the membrane from its seat and opening the main passage of the media.
The magnetic valve integrated in the Aqualone 1000 is no longer sufficient to handle flow rates above 1 m3/h. In order to save water and time on networks with high flow rates, we have developed Aqualone-controlled hydraulically operated valves.
The valve comprises a membrane bearing against a seat by a retaining spring in the closed position. The valve comprises a communication conduit between upper and lower faces thereof, being effective to maintain the membrane in the closed position on the seat when the Pilotage port is closed.
Since the pilotage port is open, the result is a pressure drop in the upper compartment of the membrane, causing the separation of the membrane from its support seat and causing the opening of the main passage of the media.
Our exclusive zoning modules
Our hydraulic valves are equipped with an innovative, autonomous zoning device!
Crop irrigation requires the use of sprinklers to cover the soil to be watered as uniformly as possible.
These sprinklers become inoperative below a set pressure threshold. This pressure drop occurs when the water consumption approaches the available flow limit of the pressurized water supply line.
To overcome this problem, and in order to increase the area to be irrigated despite limited flow availability, a means of segmenting the area to be irrigated is used.
The water supply line should therefore be divided into as many networks or zones as necessary.
These zones are until now equipped with solenoid valves electrically controlled by a multi-channel programming device, which is set to activate each valve in succession for the duration of a complete watering operation.
This means of zoning is limited in its use because it is essential to use a wire link between the programmer and the solenoid valves; these installations require rigorous maintenance because they are subjected to a damp environment that is hostile to good electrical conductivity.
It should be noted that these installations are expensive to purchase and maintain, and require a source of electrical power for the wired versions.
Our sectorisation module is integrated in our hydraulic valve, and the driver is our autonomous Aqualone controller.
The first function of this module is to condition the watering according to a user-defined pressure threshold below which the valve will be closed.
The second function of this module is to allow the opening of the valve when the other valves installed on the same network will be kept closed.
The third function of this module is to allow one or more other zones as long as the valve (s) in use do not reach the low pressure threshold defined by the user.
The fourth function of this module is to be able to prioritize the opening order of each zone of the installation by the user.
The fifth function of this module is to be able to perform all the above-mentioned actions without distance restriction; this means being reactive to the pressure differential measured in the same pipe, it can operate without any other physical connection at significant distances (several kilometers).
This installation is easy to install, requires no other source of energy than the pressure of the fluid concerned, and is very economical to purchase and maintain.