BNA-S

The magnetic flap level gauge operates based on the principles of buoyancy and magnetic coupling. Its core consists of a magnetic float inside the measuring tube and a flap indicator array arranged on the outside. When the liquid level rises, the float moves with the buoyancy of the medium, and the internal permanent magnet drives the external flaps (red and white bicolor) to flip 180°, visually displaying the liquid level height through color change.

The BNA magnetic flap level gauge/level indicator consists of a bypass chamber, a float, and a magnetic display. The bypass chamber is connected to the tank via at least two process connections (flange, thread, or weld end), introducing the liquid level from the tank at equal heights. The float is located inside the chamber, floating on the liquid surface, and contains a built-in permanent magnet. The magnetic field penetrates the bypass chamber wall to trigger the magnetic display mounted on the outside of the bypass chamber to flip, achieving non-contact liquid level indication. The magnetic display consists of bicolor plastic flips or stainless steel flaps, arranged closely at 10 mm intervals.