What is the role of the 'safety relief valve' on an LP-Gas tank?

The role of the safety relief valve on an LP-Gas tank is to release gas if the pressure exceeds safe levels. This is a critical safety feature designed to prevent over-pressurization within the tank, which could lead to dangerous situations such as leaks, ruptures, or explosions. When the pressure inside the tank rises beyond a predetermined threshold, the safety relief valve automatically opens to allow gas to escape, effectively lowering the internal pressure to a safer level. This helps to ensure the integrity of the tank and the safety of the surrounding environment.

In contrast, increasing pressure within the tank or completely sealing it could pose significant risks, as it would not account for pressure fluctuations caused by temperature changes or other factors. Preventing gas from leaking is important for safety, but that is not the primary function of the safety relief valve; instead, it serves to manage pressure control.