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Products
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Sprinkler with low-melting alloy element Y-ZST
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Lightweight fire hose LQG
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Internal fire hydrant
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Signal fire protection butterfly valve ZSXDF series
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Car emergency fire kit
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groove mechanical tee
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adapter tee for thread
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ZDMS Series Automatic Tracking Fire Extinguishing Device (Fire Water Gun)
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Fire alarm valve ZSXZF series
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groove transition with internal thread
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Outdoor Ground Fire Hydrant Shockproof Design
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Water curtain and water mist sprinkler ZSTMC/ZSTMB
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groove bend 45°
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Roll Hose Tap Adapter
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groove mechanical cross
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Composite underground outdoor fire hydrant SA100/65-1.6A
ZSFC Dry Signal Valve Series
The ZSFC dry alarm valve is the main water control unit of a dry automatic sprinkler system and an indispensable key element of the complex. In standby mode, the pipeline behind the valve is filled with compressed gas, which simultaneously holds the valve in the closed position and continuously monitors the tightness of the entire pipeline network.
Description
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Product Description
The ZSFC dry alarm valve is the main water control unit of a dry automatic sprinkler system and an indispensable key element of the complex. In standby mode, the pipeline behind the valve is filled with compressed gas, which simultaneously holds the valve in the closed position and continuously monitors the tightness of the entire pipeline network. When the sprinklers heat up and destroy at the source of the fire, the gas pressure in the line decreases sharply. Once the set threshold is reached, the dry alarm valve is automatically activated, pressurized water enters the pipeline and flows out through the sprinklers to extinguish the fire. Standard wet sprinkler systems are designed to operate in ambient temperatures between +4 °C and +70 °C.
Facilities where the temperature drops below +4 °C and there is a risk of water freezing are equipped exclusively with dry systems. The valve assembly may only be installed in areas without the threat of icing and freezing. The reason is as follows: in the standby state, the pipes on the water supply side are constantly filled with water, and the gas chamber of the system also contains sealing water to maintain the tightness of the unit. At low temperatures, the sealing water in the gas chamber easily freezes. In mild cases, this prevents normal operation of the valve and disables the system; in severe cases, it leads to rupture of valve body elements and irreversible equipment failure.
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