What safety device is required on LP gas tanks?

The requirement for a pressure relief valve on LP gas tanks is rooted in safety protocols designed to prevent the buildup of pressure that can lead to dangerous situations. The pressure relief valve serves as a critical safety device that allows excess pressure to escape from the tank, ensuring that the pressure inside does not exceed safe operating levels. This is especially important because fluctuations in temperature and the amount of gas in the tank can lead to pressure increases.

By releasing vapor during excess pressure scenarios, it minimizes the risk of tank rupture or explosion, making it an integral component in the safe handling and storage of LP gas. This safety measure is mandated by various regulatory agencies to protect both individuals and property from the hazards associated with high-pressure gas storage.