K363 Fire Sprinkler For Fire Fighting are installed in places where the slope of the building roof or ceiling does not exceed 170mm/m. The sprinkler splash plate must be installed parallel to the ceiling or ceiling. The nozzle spacing should not be less than 2.4m and should not be greater than 3.7m. When the height of the protected object is greater than 7.5m or the clearance height of the protected space is greater than 9m, the nozzle spacing should not be greater than 3m.