The wet alarm valve is a one -way valve that allows only water to flow into the water spray system and alarm under the specified flow.The wet alarm valve group is commonly used in hotels, hotels, entertainment clubs, etc., and is also an essential fire extinguishing fire device.
Wet alarm valve price
1. ZSFZ -type wet alarm valve DN150 stainless steel alarm valve fire alarm device reference price 760 yuan 2. ZSPY wet alarm valve delay delay delay delayer hydraulic bell reporting price of 55 yuan 3. Manshan brand Guangwei brand eight -square card pressureThe price control of the alarm valve fire and wet alarm valve signal control price of more than 400 yuan is from the Internet, for reference only, and the specific price shall prevail.
The role of wet alarm valve
From the name, we can see that it is an alert device.It is generally installed in the fire safety system that is installed in the building. It is the key part of the water spray fire extinguishing system. When a fire occurs in our home, the indoor temperature rises, and some molten molten materials in the water pipe will melt, and the flow of water will also flow.Starting the fire.The automatic fire prevention system will start, and the water flows out of the nozzle to reduce the fire, and the wet alarm will make a sound to remind people that the area will occur in the area.Another role is to ensure that the flow in the water pipe will not flow backwards.It is a typical water flow direction control valve. It can be divided into two types: partition seat type and guide valve type according to its structure.
Wet alarm valve installation specification
If the wet alarm valve is to be working, the sides of its valve body should meet the corresponding parameter requirements, and once the pressure of the water source fluctuates, it is guaranteed that there will be no error report.The installation method of the wet alarm valve should be vertical installation. The height from the ground is about 1.2 meters, and the distance between the two sides from the wall is not less than half a meter.After we install a wet alarm valve, we should conduct a series of debugging of its related work performance, such as detecting its strength and gas.First of all, we should exclude the air in the water drop -off pipe, and then open the corresponding water pipe valve to fill the pipe network. During the opening process, we must pay attention to it slowly, so that the air can be discharged in the pipeline.At the same time, it will automatically reset when the valve is reached a certain pressure.
The composition of the wet alarm valve group
The components of the wet alarm valve group mainly include wet alarm valve, delay device, pressure switch, hydraulic bell, water source butterfly valve and pressure gauge.The wet alarm valve is a starting and ending valve, which can not only control the switch, but also call the police.It is a valve with two effects.The most important part of the wet alarm valve group is composed of valve body and valve petals. On the cover of the valve body ring, there is a groove and small hole to the delayer and hydraulic alarm bell.The water spray system is separated to a system side and a water source side.When the fire occurs, the systems side nozzle will be sprayed with water, and the valve petals will automatically turn on under pressure difference. Then the water flows through the groove and small holes of the water flow to the delay device, and then flow to the pressure switch and hydraulic alarm bell.Then you can hear the alarm.
Wet alarm valve working principle
The working principle of the wet alarm valve is to rely on the decrease in or increased the opening valve petals by the hydraulic pressure of the pipe network system.In the state of wait, when the water supply pressure fluctuates slightly, the action of the barrier balance tube makes the valve petals up and down the water pressure balance, and the upper pressure surface of the valve petals is greater than the lower inheritance surface, and the valve petals will not open the wrong alarm.When a fire occurs, the water pressure on the side of the pipe network system is reduced, and the pressure difference generated by the water supply side and the system side will open the valve petals to the open no sprinkler continuously water supply and fire.

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