Wet Alarm Valve With Grooved Ends
The groove wet alarm valve is the core control component of the wet automatic sprinkler fire extinguishing system, which adopts a groove connection method. It is mainly used to control the water flow, activate the alarm device, and prevent water backflow when a fire occurs.
Fujian Haijing Fire Fighting Equipment Co., Ltd. is one of the leading manufacturers and suppliers of wet alarm valve with grooved ends in China, also supports customized service. Please feel free to wholesale cheap wet alarm valve with grooved ends from our factory.
Products Description
The groove wet alarm valve is the core control component of the wet automatic sprinkler fire extinguishing system, which adopts a groove connection method. It is mainly used to control the water flow, activate the alarm device, and prevent water backflow when a fire occurs.
major function
Control water flow: Keep it normally closed, and in case of a fire, the nozzle will automatically open when it ruptures, conveying the extinguishing water flow.
Trigger alarm: After the valve disc is opened, water flows into the alarm pipeline, driving the hydraulic alarm bell and pressure switch, and emitting an audible and visual alarm signal.
Prevent backflow: The one-way valve structure prevents water from flowing back and polluting the water source in the pipeline network.
Structural composition
Valve body: main channel, controls water flow switch.
Valve disc: Normally sealed, it opens under the action of water pressure in case of fire.
Delay device: prevents false alarms and buffers brief water pressure fluctuations.
Hydraulic alarm bell&pressure switch: alarm device.
Groove end: using clamps to quickly connect pipes, easy to install.
Working principle
Normal state: The valve disc is closed and the system side pipeline is filled with pressurized water.
Fire state: The nozzle ruptures due to heat → System side pressure drops → Valve disc opens → Water flows towards the nozzle to extinguish the fire.
Alarm process: Part of the water flow enters the alarm pipeline → the hydraulic alarm bell is driven to sound, and the pressure switch sends a signal to the fire control room.
Application scenarios
Wet automatic sprinkler fire extinguishing system.
Building fire protection: shopping malls, office buildings, hotels, warehouses, etc.
Industrial facilities: factories, data centers, etc.
Advantages and Characteristics
Quick installation: Groove connections do not require welding or threading, saving time.
High reliability: simple mechanical structure and low failure rate.
Easy maintenance: detachable for inspection, delay device reduces false alarms
| 型号规格 | 额定工作压力(MPa) | 密封试验压力(MPa) | 强度试验压力(MPa) | 公称通径(mm) | 报警阀高度H(mm) | 沟槽连接外径(mm) | 最大安装宽度L(mm) |
| ZSFZ80(G) | 1.6 | 3.2 | 6.4 | 80 | 225 | 89 | 800 |
| ZSFZ100(G) | 100 | 245 | 114 | 820 | |||
| ZSFZ125(G) | 125 | 250 | 140 | 840 | |||
| ZSFZ150(G) | 150 | 270 | 165 | 860 | |||
| ZSFZ200(G) | 200 | 360 | 219 | 900 |
Products photos
company information
Q&A
Q: How to test whether the wet alarm valve in the groove is working properly?
A: Open the test valve (usually located at the end of the alarm pipeline).
Observe whether the hydraulic alarm bell sounds and whether the pressure switch sends a signal to the fire control system.
Check if the drainage of the delay device is unobstructed.
After closing the test valve, the system should automatically reset.
Contact information
Pauline
WhatsApp/WeChat: +86-13332933886
Email: manager@sanjingfire.com
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