The pre action alarm valve opens the signal valve, and the water enters without opening the solenoid

Here are some of the well-known brands recognized in the deluge valve industry, which are widely recognized and have a great 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.

Summary. The solenoid valve of the pre-action alarm valve is usually installed above the alarm valve, its function is to control the pre-action pressure oil to enter the alarm valve, when the system pressure is lower than the set value, the solenoid valve will be closed, to prevent the pre-action pressure oil from entering the alarm valve, so as to avoid false alarm. If the solenoid valve is installed under the alarm valve, it may cause the pre-action pressure oil to enter the alarm valve all the way, causing false alarms or affecting the normal operation of the system.

Therefore, the solenoid valve of the pre-acting alarm valve should be installed above the alarm valve.

The solenoid valve of the pre-action alarm valve is usually installed above the alarm valve, and its function is to control the pre-action pressure oil to enter the alarm valve, when the system pressure is lower than the set value, the solenoid valve will be closed, so as to prevent the pre-made scattered pressure oil from entering the alarm valve, so as to avoid false alarms. If the solenoid valve is installed under the alarm valve, it may cause the pre-action pressure oil to enter the alarm valve and flush it out, causing false alarms or affecting the normal operation of the system. Therefore, the electrically accompaniment magnetic valve of the pre-action alarm valve should be installed above the alarm valve.

Can I go directly into the control room? When the control room is relatively close.

In general, the control room is an important part of the power system, and not everyone can enter it at will. If you need to enter the control room, you need to apply to the relevant departments in advance, and you need to comply with the corresponding safety regulations and operating procedures. At the same time, it is also necessary to pay attention to the high-voltage electrical equipment and dangerous goods that may exist in the control room, and the corresponding protective equipment must be worn and operated in strict accordance with the operating procedures.

Summary. 1.The pre-action valve is a rain deluge valve below and a wet alarm valve above it. When in the waiting state, the system side is filled with pressurized gas, and the lower deluge valve relies on the pressure chamber or diaphragm cavity to control the pressure on the water source side.

The solenoid valve of the pre-action valve group is on the pipeline of the control cavity, and the water in the control cavity will be flushed out when the valve is opened, so as to expand the rod **, the valve disc will be opened, and the water will flow into the alarm pipeline. This pipeline is also installed with a manual quick open valve, after staring at the failure of the automatic open solenoid valve, manually open the manual quick open valve, and the water in the control cavity will be released, so that the telescopic rod is opened, and the water flows into the alarm pipeline.

1.The pre-action valve is a rain deluge valve below and a wet alarm valve above it. When the rubber is in the response state, the system side is filled with sun-seeping gas, and the lower deluge valve relies on the pressure chamber or diaphragm cavity to control the pressure on the water source side.

Summary. The pre-action alarm valve group is a safety protection device used to detect whether the pressure is normal in the pipeline system and send out an alarm when the pressure is abnormal. When the network is under pressure and the signal valve is opened, the water does not go up, which may be due to the following reasons:

1.Valve not open: Check that the signal valve and main valve are fully open to ensure that water can flow through the valve into the pipe.

2.Valve blockage: Check whether there is any debris or dirt blockage inside the valve, and clean up the debris or dirt inside the valve.

3.Valve failure: Check whether the valve is faulty, such as the valve is not tightly sealed or the valve has been damaged, and the valve needs to be replaced in time.

4.Pipe leakage: Check the pipe for water leakage, if the pipe is leaking, the water cannot flow into the pipe.

Pre-action alarm valve group, no pressure in the pipe network, how can the water not go up when the signal valve is opened.

Why pre-action alarm valve, I pump water very slowly.

The pre-action alarm valve group is a safety protection device, which is used to detect whether the pressure is normal in the wide road system, and to sound an alarm when the pressure is abnormal. When the pipe network is under pressure and the signal valve is opened, the water does not go up, which may be due to the following reasons:1

Valve not open: Check that the signal valve and main valve are fully open to ensure that water can flow through the valve into the pipe. 2.

Valve blockage: Check whether there is any debris or dirt blockage inside the valve, and clean up the debris or dirt inside the valve. 3.

Valve failure: Check whether the valve is faulty, such as the valve is not tightly sealed or the valve has been damaged, and the valve needs to be replaced in time. 4

Leaking old and bright water in the pipe: Check the pipe for leaks, if the pipe is leaking, the water cannot flow into the pipe.

The valves are all open.

The alarm valve for pre-cracking is a kind of safety valve, which is mainly used to monitor the pressure of the pipeline system and send out an alarm when the pressure is too high or too low to ensure the safety of the pipeline system. When you are pumping water, the pre-action alarm valve causes the water to flow slowly for several reasons:1

The pressure of the pre-acting alarm valve is too high: the pressure of the pre-acting alarm valve is set too high, resulting in slow water flow, and the pressure of the pre-acting alarm valve needs to be adjusted. 2.

Clogged pipes: There may be debris or dirt clogged inside the pipes, causing the water to flow slowly. Debris or dirt needs to be cleaned from the inside of the pipes.

3.The valve is not fully opened: The valve is not fully opened, resulting in a slow flow of water.

You need to make sure that the valve is fully open. 4.Leaking pipes:

There was a leak in the piping system, causing the water to flow slowly. The piping system needs to be inspected for water leaks.

Reason: 1. The return control valve of the trouser section of the alarm pipe is closed and closed.

2. The filter screen of the current limiting device is blocked.

Solution: 1. Open the alarm pipeline control valve.

2. Unload the lower flow limiting device, rinse it and reinstall it back in place.