Working PrincipleThe magnetic flap level gauge is mainly composed of the body, magnetic float, flap box and indicator. Its working principle is based on the communicating vessel and magnetic coupling effect.When the level gauge is connected to the container, according to the communicating vessel principle, the liquid level in the level gauge is consistent with the liquid level in the container. In the body tube of the level gauge, there is a magnetic float that can float up and down with the liquid level. This magnetic float has a permanent magnet inside, and its magnetism can penetrate the wall of the body tube.The flap box is installed on the outside of the body tube, and a series of flaps are installed in the box, each flap also has a small magnet. When the liquid level rises or falls, the magnetic float moves up and down, and its magnetic field interacts with the small magnet in the flap. When the magnetic field of the magnetic float is strong enough, it will drive the flap to flip…