What is the purpose of a pressure gauge on a boiler?

The purpose of a pressure gauge on a boiler is to monitor the internal pressure for safe operation. This gauge provides critical information about the pressure within the boiler system, which is essential for ensuring that the boiler operates within safe and optimal parameters. If the pressure exceeds the suggested limits, it could signal potential issues like overpressure conditions that may lead to system failures or hazardous situations.

Correct monitoring helps prevent dangerous situations such as boiler explosions or ruptures, which can cause significant damage and pose risks to personnel and property. The pressure gauge allows operators to take timely action if pressures become too high or too low, ensuring the operation is both efficient and safe.

While controlling fuel flow, measuring water temperature, and regulating expansion tank levels are important functions within a boiler system, these tasks are not handled by the pressure gauge, which is specifically designed for monitoring pressure levels.