Firefighting installation including a network of vacuum sprinklers that can be tripped by an actuator operated by a membrane-master actuator

A fire fighting installation, comprising:

• a network of vacuum sprinklers;
• and
• a trip device for filling the network of sprinklers with water, the trip device comprising:
• at least one first actuator comprising a body which has a water inlet duct, a water outlet duct, and a member which is movable between a closed position that prevents water communication between the water inlet duct and the water outlet duct, and a tripped position that permits water communication between the water inlet duct and the water outlet duct, wherein the closed position maintains the network of sprinklers under a vacuum, and wherein the tripped position trips the filling with water of the network of sprinklers;
• a yoke movable between a first position and a second position;
• a master actuator sensitive to pressure present in the network of sprinklers and coupled to move the yoke between the first and the second position;
• a lock, which locks the member of the first actuator in the closed position that prevents water communication between the water inlet duct and the water outlet duct;
• and
• a transmission member between said yoke and said lock, which moves the lock to allow the member of the first actuator to pass from the closed position to the tripped position that permits water to flow from the water inlet duct to the water outlet duct when the yoke is in said second position,
• wherein said master actuator comprises a membrane that is movable between a first position corresponding to the network of sprinklers being under vacuum and a second position corresponding to the network of sprinklers being subject to atmospheric pressure, said first and second positions of the membrane corresponding to said first and second positions of the yoke.