Which automatic electric control for steam boilers will shut down the burner if water levels drop below a safe point?

The low water cut-off is designed specifically to monitor the water level within a steam boiler. Its primary function is to ensure that the boiler does not operate when the water level falls below a predetermined safe point. When the water level drops to a level that could potentially expose the heating elements or create unsafe conditions, the low water cut-off activates and automatically shuts down the burner. This safety feature is critical for preventing equipment damage and ensuring the safe operation of the boiler.

The other devices mentioned serve different functions. The high limit switch is designed to shut down the burner if the temperature within the boiler exceeds a safe operating level, helping to prevent overheating. A flow switch monitors the flow of water or steam in the system and shuts down the burner if there is insufficient flow, while a pressure sensor measures the pressure within the system, triggering safety mechanisms if the pressure exceeds safe limits. Each of these components plays an important role in boiler safety and operation, but the low water cut-off specifically addresses the critical issue of low water levels.