Deluge systems employ a heat or smoke detection system that open a deluge valve when set off. The sprinklers in a deluge system work simultaneously. When activated, all sprinklers discharge water at the same time. 

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​Deluge systems are:

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• Used in highly flammable, industrial locations such as chemical storage facilities.

• Can incorporate the use of foam to form a layer of protection, cutting off the oxygen and therefore impeding the growth of the fire.