A liquid level float switch is an electrical control device used in tanks, wide wells, or water reservoirs of a specific volume and depth to control devices like pumps and pressure tanks based on the increase or decrease in water level. Electric float switches help maintain the water level within a specified range or activate and deactivate other devices based on the water level.
Working Principle of Liquid Level Float Switches
The float switch is lighter than water, so it floats when submerged. As the water level decreases, the float descends along with the water. Inside the float is a stainless steel ball, approximately 25 mm in diameter, which moves about 2 cm forward or backward within its channel, depending on the float's movement up or down. A micro switch is fixed at the end of the channel, where the ball moves back and forth, and it is activated by the ball’s movement. This action triggers an electrical switch.
Advantages of Rubber Cables
The advantage of having a rubber cable for float switches is that the cable does not harden due to temperature changes in air and water, nor does it crack or break due to hardening over time. The cable remains elastic and functional for many years.
Liquid level float switches are used for controlling the liquid level in stationary liquid tanks in residential and industrial facilities (e.g., tanks, artesian wells, sewage pits, wastewater). Our liquid level switches are resistant to mineral and acidic waters with concentrations up to 10%. The outer shell of our liquid level switches is made of anti-shock polypropylene material, making them resistant to high ambient temperatures. Liquid level float switches can be used in both directions: they can be set to operate when the float is in the down position or in the up position.
Technical Specifications
Voltage: AC 125/250 Volts
Maximum Current: 16 Amperes
Frequency: 50-60 Hz
Maximum Liquid Temperature: 50 °C
Protection Class: IP68
Cable Length: 3 meters
Diamention: 190 mm * 77 mm * 58 mm Weight: 0.700 gr