Wet alarm valve

3 month ago

8 0

Zhengzhou guan hao yong International Trade Co.,

 7 month year

Product details

Wet alarm valve is a very important component of automatic sprinkler fire extinguishing system, mainly used to monitor and control water flow, ensuring that the fire protection system can be activated in a timely manner in case of a fire. It realizes the functions of alarm and fire extinguishings by sensing changes in water pressure, and is a key equipment to ensure the fire safety of buildings.

working principle

The working principle of wet alarm valves is based on changes in water pressure. Under normal circumstances, the water pressure on both sides of the alarm valve is equal, and the valve disc is in a closed state. When a fire occurs and the closed nozzle is heated to spray water, the water pressure balance hole cannot replenish the water flow in time, resulting in a decrease in water pressure above the alarm valves. At this time, the water pressure in front of the valve disc is greater than that behind it, and the valve disc opens, allowing water to flow into the fire water system and trigger the alarm device.

Structural composition

The wet alarm valve group is mainly composed of steel structure valve body, delay device, hydraulic alarm bell, pressure switch, drainage valve, Y-shaped filter, etc. The interior of the valve body is divided into two chambers by the seat ring and valve disc, namely the system side and the water supply side. The seat ring has grooves and small holes connected to the alarm water channel, and these structural designs ensure the correct operation of the alarm valve under different pressures.

Application scenarios

Wet alarm valves are widely used in various places such as high-rise buildings, hotels, hospitals, theaters, offices, warehouses, etc. It is particularly suitable for places with ambient temperatures between 4 ° C and 70 ° C, as closed nozzles can quickly sense and initiate the fire extinguishing process in the event of a fire within this temperature range.

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Zhengzhou guan hao yong International Trade Co.,

 Audited supplier

7 month

Address: Zhengzhou, China

Main Product: HDPE Pipe, PVC Pipe, PPR Pipe, Mobile House , Container Room, Steel Building

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