Safety valve for a compressed-gas tank

摘要

A safety valve for a compressed gas tank in which the plug is made of meltable material and intended to melt at a pre-determined temperature in order to release the compressed gas from the tank. The safety valve is essentially characterized in that the meltable plug is subjected to the action of a differential action sliding piston intended for reducing at least some of the effect of the gas pressure on the meltable plug.