Deluge sprinkler system automatically open the deluge valve device can be used in any of the following transmission: with fusible lock cable device. The working principle is that when the fusible seal is heated and melted and released, the transmission valve is automatically opened, the transmission pipe drains water, the pipe network is depressurized and the deluge valve is automatically opened, but the effect is not very satisfactory; Water filled or aerated drive tube system. The system uses a closed nozzle as a temperature detector to detect fire, the drive tube diameter wet 25 mm, dry 15 mm, when any one of the transmission pipe system nozzle to open the water spray and cause the pressure drop in the transmission pipe , Can automatically open the deluge valve, but the transmission pipe must be higher than the deluge valve; in order to prevent hydrostatic pressure delaying the deluge valve effect, wet hydrostatic transmission pipe hydrostatic pressure should not exceed the pressure before the deluge valve 1/4; electric control with fire detector.
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