What is the primary role of a low water cutoff?

The primary role of a low water cutoff is to shut down the boiler when the water level drops below a safe point. This is essential for the safe operation of a boiler, as low water levels can lead to overheating and potential damage to the boiler components, including the heat exchanger and burner. If the water level drops too low, there is insufficient water to absorb the heat produced during combustion, which can cause the boiler to overheat and potentially fail, leading to dangerous conditions such as boiler explosion or damage.

The low water cutoff acts as a critical safety device that continuously monitors the water level and ensures that the boiler operates within safe parameters. It is designed to interrupt the operation of the burner or heat source to prevent excessive temperature rise when the water level falls to a predetermined point. By doing so, it protects both the equipment and the facility from severe consequences associated with low water conditions.

This safety feature is crucial for maintaining the integrity of the boiler system and ensuring smooth, safe operations in various applications.