Overpressure safety device of a deposit containing liquado petroleum gas.

摘要

Safety device for a tank vehicle (1) for containing fluid (2) under pressure of the type comprising a safety valve (3) permitting communication the reservoir and the outside environment, characterized in that it comprises a sensor pressure difference (4) which takes into account a variation of determined pressure for a defined time interval for measuring an asymptotic increase in the fluid pressure in the reservoir (1) in order to control the advance valve opening safety (3).