On the issue of the pricing of wet alarm valves and components in pipelines for fire protection syst

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

The upstairs is very clear.

Yes. The annular water supply pipeline in front of the alarm valve group, the sprinkler pump is used and prepared, and the outlet pipe of the pump group is not less than 2.

Yes, when there are more than 2 sets of wet reporting valves, it must be made into a ring pipe, and when there is a problem with a pipeline, the water supply can still be guaranteed.

I feel that it should be set up separately, there are many air ducts in the fan room, and there are many water pipes in the wet alarm valve room, and there are too many pipes crossing in one room, and there is generally an electric box in the fan room, and the leakage of the wet alarm valve pipe is also a problem. The building we are currently building has 10 wet alarm valve rooms, and the alarm valve room and pump room can be shared.

The wet alarm valve is a water supply control valve in a wet fire extinguishing system. It makes the water flow in one direction and gives an alarm at a certain flow rate.

The working principle of the wet alarm valve is to open and close the disc by reducing or increasing the water pressure on the side of the pipe network system. In the service state, when the water supply pressure fluctuates slightly, the action of the bypass balance pipe balances the upper and lower water pressure of the valve disc, and the upper pressure bearing surface of the valve disc is greater than the lower pressure bearing surface, and the valve disc will not open and cause false alarm. When a fire occurs and the water pressure on the system side of the pipe network drops, the pressure difference between the water supply side and the system side will open the valve disc and continuously supply water to the open sprinkler head to extinguish the fire.

Wet fire extinguishing systems with wet alarm valves must be installed in buildings with an ambient temperature of not less than 4 to prevent them from losing their fire protection function due to icing.

Wet alarm valves come standard with pressure gauges, retarders, pressure switches, hydraulic alarm bells, and the necessary fittings and valves.

The control ball valve servo between the wet alarm valve alarm port and the retarder must be kept fully open and locked, while the test alarm control ball valve must be closed. When it is necessary to test the alarm: disassemble the locking device that controls the ball valve between the alarm port and the retarder and close it.

At this time, the test alarm control ball valve can be opened to carry out the alarm test. Immediately after the test, the two control ball valves were restored to their original state.

The working principle of the pre-acting alarm valve, the components and working principle of the wet alarm valve group.

Wet alarm valve group components and working principle.