What is the main purpose of the pressure relief valves on gas cylinders?

The main purpose of pressure relief valves on gas cylinders is to prevent over-pressurization. These valves are safety devices designed to automatically release gas when the pressure inside the cylinder exceeds a predetermined limit. This is crucial for maintaining the structural integrity of the cylinder and preventing potential hazards such as ruptures or explosions.

By releasing excess pressure, these valves ensure safe operation, protecting both the equipment and personnel handling the gas cylinders. Proper functioning of pressure relief valves is vital in various applications, including refrigeration systems, where the controlled containment of gases and liquids is essential to prevent dangerous situations.

In contrast, regulating the flow of gas, measuring the gas level, and facilitating easy transport are functions that are managed by other components or systems, not directly related to the primary role of pressure relief valves. Therefore, the emphasis on preventing over-pressurization highlights the critical safety function that these valves serve in gas cylinder applications.