Float

A float switch is a mechanical device that detects the level of liquid within a tank or vessel to prevent overfilling or running dry. It operates by opening or closing an electrical circuit as the float rises or falls with the liquid level, triggering pumps or alarms automatically.

The collection features switches made from high-grade materials like stainless steel and chemical-resistant plastics to ensure durability in various environments. Stainless steel models are ideal for high-temperature or food-grade applications, while plastic versions are often used for general water and corrosive chemical monitoring.

Vertical float switches are typically installed through the top or bottom of a tank and are best for deep vessels with limited side access. Horizontal switches are mounted through the side wall and are often preferred for shallow tanks or when top-access is obstructed by other equipment.

While many float switches can handle small loads, they are most commonly used to trigger a relay or a control system that then operates the pump. This configuration protects the switch from high-current surges and allows for more complex logic, such as "auto-start" and "low-level cut-off" sequences.

Yes, the range includes robust designs engineered to withstand significant pressure and can be supplied with explosion-proof ratings for hazardous zones. These specialized units ensure reliable level detection in oil and gas processing, chemical plants, and high-pressure steam systems.

While they do not require traditional scale calibration, regular functional testing is essential to ensure the mechanical movement is not hindered by debris or buildup. HK Calibrations can assist in verifying that the electrical trip points are functioning correctly within your broader liquid management system.