Which is a common safety feature in a boiler system?

A water level indicator is a crucial safety feature in a boiler system because it provides real-time information about the water level within the boiler. Maintaining an appropriate water level is essential for the safe operation of the boiler. If the water level falls too low, it can lead to overheating and potentially cause damage to the boiler or even a catastrophic failure, such as an explosion. The water level indicator allows operators to monitor this vital parameter and take necessary actions to prevent unsafe operating conditions. Regular monitoring helps ensure that the boiler operates efficiently and safely, thereby minimizing risks associated with boiler operation.

Other features such as a fuel gauge, automatic feeder, and temperature recorder play important roles in the operation and efficiency of the boiler system, but they do not offer the same direct safety monitoring regarding water levels as the water level indicator does. The absence of a proper water level indication can lead to severe safety hazards, making it a fundamental feature in any boiler system for the protection of both the equipment and personnel.