SPRINKLER STOP VALVE.
The notice "Sprinkler stop valve inside," which is to be seen outside many building's, shows that the controlling valves of an automatic water sprinkler system have been installed. Automatic sprinkler systems consist of a series of water-filled pipes arranged throughout a building, with nozzles fixed at intervals of about 10ft. These nozzles are covered with a substance which is very easily melted, so that when a fire occurs one of these nozzles is opened by the heat, causing water to spray on the lire. Immediately the water commences to run on to the lire an automatic alarm rings outside the building, and another alarm calls out the fire brigade, which is on the spot in a few moments, and turns the water off as soon as the fire has been completely put out. The feature of the system is that the fire actually gives its own alarm and extinguishes itself without anv human help.
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Bibliographic details
Auckland Star, Volume LXIII, Issue 287, 3 December 1932, Page 3 (Supplement)
Word Count
157SPRINKLER STOP VALVE. Auckland Star, Volume LXIII, Issue 287, 3 December 1932, Page 3 (Supplement)
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