What safety feature is typical of ton containers to ensure protection against leaks?

Fusible plugs are a critical safety feature in ton containers designed to mitigate the risks of leaks and potential explosions. These plugs are made of a material that melts at a specific temperature, which ensures that if the container experiences excessive heat, the fusible plug will fail and release the contents in a controlled manner, preventing the build-up of dangerous pressure.

This mechanism serves to protect the integrity of the container and the surrounding environment, especially under fire conditions. When the fusible plug activates, the release of the contents occurs in a way that allows for safer dispersion rather than an uncontrolled rupture or explosion, which could lead to hazardous situations.

Other features, such as pressure relief valves and emergency shut-off valves, also aim to manage pressure and prevent catastrophic failures, but they operate under different scenarios compared to fusible plugs, which are specifically focused on thermal events. Insulated walls serve to maintain temperature but are not specifically designed for direct leak prevention. Thus, in the context of preventing leaks associated with thermal incidents, fusible plugs stand out as the most relevant feature.