New York Low Pressure Boiler Certificate of Fitness (COF) 2025 – 400 Free Practice Questions to Pass the Exam

The low water cut-off is a crucial component in a low pressure boiler system because it acts as a safety device that monitors the water level within the boiler. When the water level falls below a predetermined point, the low water cut-off will trigger an alarm or shut down the boiler to prevent damage or unsafe operating conditions. This mechanism ensures that the boiler always has an adequate water supply, which is essential for safe and efficient operation.

While other components like the water level gauge provide visual indicators of the water level, and the float switch can be involved in automation regarding water level management, the low water cut-off directly protects the boiler by preventing it from operating without sufficient water. The overflow valve, meanwhile, primarily manages excess water rather than indicating a need to add water. Thus, the low water cut-off is specifically designed to alert or take action when the water level is too low, making it vital for the safe operation of low pressure boilers.