What is the function of a pressure relief valve in a boiler?

The function of a pressure relief valve in a boiler is to prevent excess pressure buildup in the boiler. This is crucial for the safe operation of the system. In a boiler, steam is generated under pressure, and if the pressure exceeds the designed limits, it can lead to dangerous situations, such as equipment failure or explosions. The pressure relief valve is engineered to automatically release steam or water when the pressure reaches a predetermined limit, thereby maintaining safe operating conditions.

It's important to understand that this valve acts as a safety mechanism, ensuring that the pressure does not exceed safe levels, which protects both the boiler and personnel working around it. Proper functioning of the pressure relief valve is vital for preventing accidents and ensuring compliance with safety regulations.