Magnetic flow switch, for aspirators in particular

A magnetic flow switch comprising:

• a body defining a substantially cylindrical, axial through chamber destined to have a flow of fluid pass through it,
• an excitation magnet arranged in a shuttle mounted in said chamber of the body in a manner such that it can slide, passing from an initial front position to a final rear position, under the effect of the pressure of the fluid flow running through the chamber of the flow switch,
• a magnetic contact switch arranged on the flow switch's body to detect a magnetic field generated by a displacement of said excitation magnet from the front position to the rear position and to accordingly send a control signal to an electronic control board, and
• at least one attraction magnet arranged on the body of the flow switch, in a position such as to generate an attraction magnetic field able to attract said excitation magnet to make the shuttle move to the initial front position when the fluid flow is interrupted, irrespective of the position in which the flow switch is located.