An activation and fluidification system (100) for granular material silos (101) or containers, comprising a plurality of fine adjustment firing valves (102) comprising discharge limiters to limit the discharge of a pressurized aeriform from an initial pressure to a predetermined final pressure lower than the initial pressure, and connected to the silo (101), the system comprising a tubular network (103) for storing pressurized aeriform at the initial pressure, and to which the plurality of valves (102) are connected.