Horizontal Sidewall Sprinklers are widely used in hotels, restaurants, and commercial buildings to spray water during fire. They are mounted along the wall & just beneath the ceiling having centerline of waterway in horizontal position. These sprinklers produce quarter-spherical discharge pattern of water that is directed downward & outward from the detector. They are greatly admired for their corrosion proof nature and durability. These are comprised of a glass bulb having thermal sensitive liquid, which breaks automatically when there is sudden rise in temperature to activate sprinklers.