Systems and methods of ceiling-only fire protection of a storage structure are provided. The system can include a plurality of fluid distribution devices disposed in a grid pattern beneath a ceiling and above the storage structure. The plurality of fluid distribution devices can include a frame body, seal assembly and actuator. The system can include a fluid distribution system including network of pipes interconnecting the plurality of fluid distribution devices with a water supply. The system can include a plurality of detectors to monitor the storage structure for a fire. The system can include a controller coupled to the plurality of detectors to detect and locate the fire, and coupled to the plurality of fluid distribution devices to identify and control operation of a select number of the plurality of fluid distribution devices that define a discharge array above and about the fire.

Systems and methods of ceiling-only fire protection of a storage structure are provided. The system can include a plurality of fluid distribution devices disposed in a grid pattern beneath a ceiling and above the storage structure. The plurality of fluid distribution devices can include a frame body, seal assembly and actuator. The system can include a fluid distribution system including network of pipes interconnecting the plurality of fluid distribution devices with a water supply. The system can include a plurality of detectors to monitor the storage structure for a fire. The system can include a controller coupled to the plurality of detectors to detect and locate the fire, and coupled to the plurality of fluid distribution devices to identify and control operation of a select number of the plurality of fluid distribution devices that define a discharge array above and about the fire.

There is provided a sprinkler device, comprising: a sprinkler bulb 100 comprising a sealed frangible housing 110, and a passive circuit device 120 within the housing 110, wherein the passive circuit device 120 comprises a wireless module 160; and a base station 200 configured to detect pressure changes inside the sprinkler bulb 110 via the wireless module 160. A method of testing integrity of a sprinkler bulb is also provided, comprising: monitoring a pressure change within the sprinkler bulb 100 via a wireless module 160 of a passive circuit device 120 inside a sealed frangible housing 110 of the sprinkler bulb 100; and determining that the sprinkler bulb is in working order if the pressure reaches a predetermined threshold; or determining that the sprinkler bulb is not in working order if the pressure does not reach the predetermined threshold.

There is provided a sprinkler device, comprising: a sprinkler bulb 100 comprising a sealed frangible housing 110, and a passive circuit device 120 within the housing 110, wherein the passive circuit device 120 comprises a wireless module 160; and a base station 200 configured to detect pressure changes inside the sprinkler bulb 110 via the wireless module 160. A method of testing integrity of a sprinkler bulb is also provided, comprising: monitoring a pressure change within the sprinkler bulb 100 via a wireless module 160 of a passive circuit device 120 inside a sealed frangible housing 110 of the sprinkler bulb 100; and determining that the sprinkler bulb is in working order if the pressure reaches a predetermined threshold; or determining that the sprinkler bulb is not in working order if the pressure does not reach the predetermined threshold.

A fire protection system includes a fire extinguisher including a housing. The housing includes an extinguisher outlet and a burst disk. The burst disk configured to retain a volume of fire suppressant material in the housing. A firing cartridge is operably connected to the housing. The firing cartridge includes an output charge, and an ignition charge that, when detonated, causes release of the output charge to rupture the burst disk and release the volume of fire suppressant material through the extinguisher outlet. An optical fiber is configured to transmit a light signal toward the ignition charge to heat and detonate the ignition charge. A light source is operably connected to the optical fiber to transmit the light signal along the optical fiber.

A fire protection system includes two or more fire extinguishers. Each fire extinguisher includes a housing, the housing including an extinguisher outlet and a burst disk. The burst disk is configured to retain a volume of fire suppressant material in the housing. A firing cartridge is operably connected to the housing and includes an output charge, and an ignition charge that, when detonated, causes release of the output charge to rupture the burst disk and release the volume of fire suppressant material through the extinguisher outlet. An optical fiber is configured to transmit a light signal toward the ignition charge to heat and detonate the ignition charge. A light source is operably connected to the optical fiber to selectably transmit a first light signal to selectably activate a first fire extinguisher or a second fire extinguisher of the two or more fire extinguishers.

A fire protection system includes two or more fire extinguishers. Each fire extinguisher includes a housing, the housing including an extinguisher outlet and a burst disk. The burst disk is configured to retain a volume of fire suppressant material in the housing. A firing cartridge is operably connected to the housing and includes an output charge, and an ignition charge that, when detonated, causes release of the output charge to rupture the burst disk and release the volume of fire suppressant material through the extinguisher outlet. An optical fiber is configured to transmit a light signal toward the ignition charge to heat and detonate the ignition charge. A light source is operably connected to the optical fiber to selectably transmit a first light signal to selectably activate a first fire extinguisher or a second fire extinguisher of the two or more fire extinguishers.

A sprinkler system includes a fitting, at least one tube, at least one fluid distribution device, and an actuator. The fitting connects with at least one pipe, defines an opening, and includes a seal. The seal has a closed state in which the seal seals the opening and an open state in which the seal does not seal the opening to allow fluid flow from the at least one pipe through the opening. The at least one tube connects with the fitting on an opposite side of the seal from the at least one pipe. The fluid distribution device is connected with the at least one tube. The actuator receives a detection signal indicative of a trigger condition and causes the seal to change from the closed state to the open state to allow the fluid flow through the opening responsive to receiving the detection signal.

A sprinkler system includes a fitting, at least one tube, at least one fluid distribution device, and an actuator. The fitting connects with at least one pipe, defines an opening, and includes a seal. The seal has a closed state in which the seal seals the opening and an open state in which the seal does not seal the opening to allow fluid flow from the at least one pipe through the opening. The at least one tube connects with the fitting on an opposite side of the seal from the at least one pipe. The fluid distribution device is connected with the at least one tube. The actuator receives a detection signal indicative of a trigger condition and causes the seal to change from the closed state to the open state to allow the fluid flow through the opening responsive to receiving the detection signal.

An actuation mechanism of a fire suppression system includes a first input having a first tension, a second input having a second tension, and an output. When the actuation mechanism is in an inactive configuration, the first input and the second input cooperate to maintain a third tension in the output.