Patent ID: 7055612

Claim:
A fire suppression system comprising: system piping; at least one sprinkler mounted to said system piping, said system piping for delivering fire suppressant to said sprinkler, said sprinkler having an outlet and a temperature sensitive trigger, said temperature sensitive trigger opening said outlet for dispersing fire suppressant when sensing temperatures associated with a fire condition; a deluge valve in selective fluid communication with said system piping, said deluge valve having a normally closed condition whereby said system piping is normally dry, and said deluge valve for controlling the flow of suppressant to said system piping and said sprinkler; a fire suppressant delivery line in fluid communication with said deluge valve and delivering fire suppressant to said deluge valve; at least one fire detector adapted to detect temperatures associated with a fire; a control system having a pneumatic actuator and adapted to monitor the pressure in said system piping, said control system in communication with said fire detector, a source of power, said deluge valve, and said system piping, said control system adapted to actuate said deluge valve to open in response to said fire detector detecting a fire and a low pressure condition in said system piping, and said pneumatic actuator adapted to detect a drop in pressure in said system piping and to actuate said deluge valve between said closed condition and an open condition when said pneumatic actuator detects a drop in pressure in said system piping and when said control system experiences a loss of power from said source of power; and a shut-off valve in communication with said deluge valve, said shut-off valve being adapted to latch said deluge valve open once said deluge valve is open until manually shut-off.