What is the purpose of a pressure relief valve in fuel systems?

The purpose of a pressure relief valve in fuel systems is fundamentally to prevent over-pressurization, which can lead to serious safety hazards such as tank rupture. In any fuel system, maintaining the appropriate pressure is crucial not only for the effective operation of the system but also for ensuring safety. If pressure levels exceed safe limits, the structural integrity of the tanks and piping can be compromised, potentially resulting in leaks, spills, or explosions. This is why pressure relief valves are designed to automatically release excess pressure, thereby safeguarding the system against over-pressurization scenarios and protecting both personnel and the environment from the dangers associated with fuel spills and explosions. The correct functioning of these valves is vital for the reliability and safety of fuel handling operations.