What is the function of pressure relief valves in low pressure systems?

Pressure relief valves play a crucial role in the safety and functionality of low-pressure systems. Their primary function is to prevent excessive pressure buildup within the system. This is vital because, in the absence of relief valves, pressure can increase to dangerous levels due to thermal expansion or other operational changes, leading to potential failures or explosions.

When the pressure reaches a predetermined limit, the valve opens automatically, allowing excess gas or fluid to escape, which helps maintain a safe operating pressure. This mechanism not only protects equipment but also ensures safety for personnel working within or around the system.

Understanding the importance of pressure relief valves is essential for anyone working with low-pressure equipment, as it emphasizes the critical nature of maintaining safe operating conditions. Other options, while relevant to different aspects of system management, do not pertain to the specific functions of pressure relief valves, which are specifically designed for pressure management and safety.