Commercial Flat Concealed Sprinkler, Pendent (4.19)
The Model RD105 Commercial Flat Concealed Sprinklers are automatic sprinklers of the compressed fusible solder type. These are decorative and quick/standard response. The frame of the sprinkler hides the deflector, gasket, etc., which is in turn concealed above the ceiling by the cover plate assembly. The cover plate has a flat profile, and its diameter is extremely small. The push-on/thread-on, thread-off design of the concealed cover plate assembly allows easy installation of the cover plate. Therefore, the Model RD105 should be your first choice when aesthetics is the major consideration for ultimate appeal and unbeatable performance is desired.
They are to be used in wet pipe sprinkler systems per NFPA 13 or as required by the Authority having jurisdiction.
The Model RD105 has a 5.6 (80) K-factor. For extended installation flexibility, the Model RD105 provides 3/8 inch (9.0mm) vertical adjustment. This adjustment in installation decreases the need for precise cutting of the pipe that drops to the sprinkler and allows for a perfect fit with a range of pipe lengths. The heat sensitivity and water distribution design of Model RD105 allows for an increased chance of occupants' escape or evacuation in case of fire. However, fire sprinkler systems are not a substitute for fire safety awareness or fire safety construction required by building codes.