Abstract: Systems and methods of ceiling-only fire protection of a storage structure are disclosed herein. The system comprising 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 comprising a frame body, seal assembly and actuator. The system further comprising a fluid distribution system including a network of pipes interconnecting the plurality of fluid distribution devices with a water supply. The system further comprising a plurality of detectors to monitor the storage structure for a fire. The system further comprising a controller coupled with the plurality of detectors to detect and locate the fire, and coupled with 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.

Abstract: A protection device for a fire protection sprinkler having a first housing portion extending along a first housing axis defining a first internal housing chamber for receipt of one portion of a trigger assembly. A second housing portion of the protection device extends along a second housing axis and defines a second internal housing chamber for circumscribing a another portion of the trigger assembly. The first housing chamber is in communication with the second housing chamber.

Abstract: A protection device for a fire protection sprinkler having a first housing portion extending along a first housing axis defining a first internal housing chamber for receipt of one portion of a trigger assembly. A second housing portion of the protection device extends along a second housing axis and defines a second internal housing chamber for circumscribing a another portion of the trigger assembly. The first housing chamber is in communication with the second housing chamber.