Automatic Sprinklers:- "CLICK--- Sprinkler head actuating. " I ntroduction : Since one of the most important principles of successful fire extinction is to attack an outbreak immediately,it follows that any device which can detect a fire automatically and then help to extinguish it with a minimum fire loss will prove to be of great value.Automatic sprinkler systems using water as the extinguishing medium have been universally adopted for this purpose.So,the function of the automatic sprinkler may be summarized as: （i) To detect the fire. （ii)To attack the fire. （iii)To prevent the spread of fire.. （iv)To activate the alarm. The system consists of a range of piping fitted at the ceiling level on each floor of the building to be protected,the pipe work terminating at the control valve which is connected to one or more water supplies. At intervals along the piping,there are fitted sealed outlets called"Sprinkler heads"which at the predetermined temper...