kellukekytkimiä

Kellukekytkin, often translated as float switch, is a mechanical or electrical device used to detect the level of liquid in a tank or container. It operates based on the principle of buoyancy. When the liquid level reaches a certain point, it causes a float to rise or fall, which in turn activates a switch. This switch can then be used to control pumps, valves, alarms, or other associated equipment.

There are several types of float switches. One common design uses a buoyant ball or a cylindrical float that is attached to a lever. As the liquid level changes, the float moves the lever, which actuates a microswitch. Another type, the tilt float switch, uses a sealed body that contains a mercury switch or a solid-state sensor. As the liquid level rises, it tilts the switch, completing or breaking an electrical circuit. Magnetic float switches are also prevalent, where a magnet within the float operates a reed switch in a stationary housing.

Kellukekytkimiä are widely employed across various industries and applications. They are crucial for preventing overflow in water tanks, ensuring that pumps do not run dry, and maintaining desired liquid levels in industrial processes. They can be found in domestic appliances like washing machines and dishwashers, as well as in large-scale applications such as sewage treatment plants, fuel storage systems, and chemical processing facilities. Their simplicity, reliability, and relatively low cost make them a popular choice for liquid level monitoring and control.