The float level switch is a simple structure, easy to use, safe and reliable level controller.It has faster response speed and longer working life than general mechanical switches, no complicated circuits, and will not be disturbed. One product can realize multi-point control.As long as the material is selected correctly, it can be widely used in electronics, electric power, petrochemical, water treatment, water supply and drainage, shipbuilding, papermaking, printing, food, dyes, oil
pressure, mechanical equipment and other industries.

Action principle
Set one or more reed switches in the metal or engineering plastic tube as required, and then fix the float ball with built-in magnet in the body tube. The float ball and the reed switch are in the same position, so that the float ball floats up and down within a certain range. , Use the magnetism in the float ball to trigger the closing or opening of the reed switch through the body tube to achieve the purpose of controlling the liquid level.

Application Features

1. It can be controlled by multiple points according to the control requirements, and the control position can be customized according to the requirements of use;
2. The contact adopts magnetic reed switch (reed switch), and the contact life can reach 2 million times;
3. There are a variety of materials to choose from, metal(SUS304, 316), plastic (PFA, PVDF, PP, PVC);
4. The contact switch does not touch the liquid and can be used in high pressure and high temperature environments;
5. The multi-point control contacts can be in the same junction box, which is cheaper than other switches.

Relationship between liquid properties and float

1. The specific gravity of the floating ball is made with water as the reference point. The specific gravity of the liquid is different, and the action point of the floating ball is different. When the specific gravity of the liquid is small, the part of the float immersed in the liquid will be relatively.Therefore, when choosing a float, it is necessary to consider that the liquid ratio is more important than the specific gravity of the float.Then the float ball can’t float and the reed switch contact can’t be converted.
2. There is a magnet inside the float. When there is iron in the liquid, filter the iron first, otherwise.It will affect the normal floating of the floating ball, resulting in abnormal action points.
3. Use a larger float for viscous liquid (will not dry out), which can prevent the liquid from rising. The action point is abnormal due to sticking to the floating ball when descending.