Diaphragm-operated Deluge Alarm Valve

Deluge alarm valve is a key component of automatic sprinkler system, which is mainly used for the protection of industrial fire. This kind of valve starts quickly when a fire occurs and sprays a large amount of water mist through two outlets to control the development of the fire. Compared with the traditional deluge alarm valve with only one water outlet, the deluge alarm valve with two water outlets can provide a wider coverage, which is suitable for glass curtain wall, fire shutter, evacuation channel and other places

The working principle of the deluge alarm valve is based on the hydraulic force. Under normal conditions, water flows into the upper side of the control diaphragm from the water inlet of the valve body and generates hydraulic force through the inner channel of the conductor and the valve element. The control diaphragm moves downward under the action of water pressure and spring, and the sealing ring contacts the valve base to form a sealing state. When it is necessary to spray water, the water pressure on the control diaphragm decreases, the valve element moves upward and opens by the push of the water inlet pressure. The water is discharged from the outlets on both sides of the valve for fire extinguishing

Diaphragm type Deluge Alarm Valve is a key component in automatic sprinkler fire extinguishing systems, mainly used for quickly initiating high flow sprinkler fire extinguishing and suitable for high-risk areas with rapid fire spread. Its core functions include:

Quick response: Through the diaphragm structure, when the fire detection system (such as smoke sensing, temperature sensing, or manual activation) is triggered, the valve is quickly opened to allow water to flow into the sprinkler pipe network.

High flow water spray: suitable for places that require large-scale spray protection (such as petrochemicals, warehouses, stages, etc.), ensuring coverage of the entire hazardous area in a short period of time.

Alarm function: When the valve is opened, the hydraulic alarm bell or pressure switch is linked to send an alarm signal to the fire control center.

Automatic reset: After extinguishing the fire, it can be manually or automatically reset, making it easy for the system to return to standby mode

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