What should I do if the boiler check valve suddenly returns to the water and the water pump does not

The phenomenon of boiler inlet check valve return water refers to the downward movement of the piston by the pressure of hot water when the boiler circulating water pump is working, the check valve is opened, the hot water loses pressure when the pump is stopped, and the check valve rises to close the valve.

The treatment methods of check valve backwater are:

1. Disassemble the valve body, and find that due to the poor local water quality, the guide rod is seriously scaled, and there are small stones entering the pipeline, resulting in the inability of the large and small valve discs to operate. By cleaning the impurities and cleaning the scale, the large and small valve discs can be ensured to be sensitive;

2. If it is found that the damaged opening of the diaphragm is not large, it can be repaired with cold repair adhesive after the wound is removed; If the diaphragm is found to be seriously damaged, the fastening nut and diaphragm pressing plate must be removed and the diaphragm must be replaced;

3. After starting the pump on site, properly loosen the nut on the screw of the control valve HKB25 to reduce the spring preload of the movable tongue to ensure that the pump can work normally, and the check valve will open the water immediately.

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.

In the hot water heating system, the hot water pipeline is connected to the boiler and the water meter, and the boiler circulation pump is connected to the water pipe, and the boiler circulation pump is connected to the water pipe, and the boiler is circulated after it is opened, and the hot water circulation is sent to the heating points to achieve the purpose of energy-saving heating. When the test of the water meter is completed, the water will be reversed into the boiler circulating pump, and then the hot water will be circulated and sent out. The concept of anti-water is to return the unheated water to each water meter after entering the boiler circulating pump, so as to achieve the purpose of completing the water meter banquet and noise test and avoid equipment damage during the test.

Steam boiler, the inlet water pump is new, the inlet pipe is unblocked, Hanxiang holds the water pressure banquet force of 15 kg, the check valve is intact, but it just can't enter the water, and the water is very slow and slow, how to solve it.

The reasons for slow water inlet of a steam boiler may be due to the following aspects: The inlet valve is not fully opened: Check the inlet valve to make sure that the valve is fully open and the water inlet is unobstructed.

Blocked inlet pipe: Check the inlet pipe, if the pipe is blocked, you need to remove the debris or dirt in the pipe to ensure that the water inlet is unobstructed. Inlet pump failure:

Inspect the inlet pump and if it is found to be faulty, it needs to be replaced or repaired. Insufficient inlet pressure: Check the inlet pressure, if the inlet pressure is insufficient, you need to increase the inlet pressure to accompany Zhimin.

Inlet pipe leakage: Check the inlet pipe, if the pipe is found to be leaking, the pipe needs to be repaired or replaced. In view of the above situations, you can troubleshoot them one by one, find out the problem, and deal with it accordingly.

If the above measures cannot solve the problem of slow water ingress, it is recommended that you contact a professional steam boiler maintenance engineer for more in-depth inspection and repair.

Summary. Hello, Glad to serve you. Installation method of automatic opening and closing valve for return water.

1. The installation method and position of the automatic opening and closing valve for return water, and pay special attention to the direction shown by the arrow of the valve body. 2. Gate valves should be set at both ends of the body of the automatic opening and closing valve for backwater.

3. The control pipe of the return water automatic opening and closing valve valve must be connected to the outlet pipeline, and must be located between the outlet of the water pump and the check valve. Do not install on the pipe connected to the outlet of the check valve, otherwise the valve will not work.

4. Do not bring hemp and other sundries into the valve joint.

5. A decontamination device must be installed in front of this valve, otherwise it is easy to cause leakage caused by debris support gasket valve disc.

The return water opening and closing valve of the non-pressure boiler is not watery, can it be repaired?

Hello, Glad to serve you. The installation method of the automatic opening and closing valve of the backwater is noisy 1, the installation method and location of the automatic opening and closing valve of the backwater, and special attention is paid to the direction shown by the arrow of the valve body. 2. Gate valves should be set at both ends of the body of the automatic opening and closing valve for backwater.

3. The control pipe of the automatic opening and closing valve valve of the return water must be connected to the outlet pipeline, and must be located between the outlet of the water pump and the silver stop return valve. Do not install on the pipe connected to the outlet of the check valve, otherwise the valve will not be empty. 4. Do not bring hemp and other sundries into the valve joint.

5. A decontamination device must be installed in front of this valve, otherwise it is easy to cause leakage caused by debris support gasket valve disc.

Nothing is right.

Hello, the return water opening and closing valve of the non-pressure cooker annihilation furnace is not changed by the water smile, and it can be restored to use by reinstalling. 

Why is it hot when the water is inlet and discharged, and it is not hot when the return valve is opened.

Hello dear! Very key scum glad of your question. 1. Check the reason, if it is caused by gas blockage in the heating pipe, you can close the water inlet valve first, and then open the exhaust valve one by one, and wait until the gas is emptied, and the water outlet pipe will slowly heat up.

If the outlet pipe is not hot due to foreign matter in the return pipe, you can clean the impurities in the return pipe before using it. 2. First of all, Guan Yanliang sells the main valve of the return water to prevent the water in the return pipe from being released. Then, leave only one of the water separators in your home open and the others off.

Next, connect a water pipe to the return water exhaust valve, unscrew the exhaust valve, and use a small basin to connect the water flowing out of the water pipe. Finally, repeat the second step to close one of the pipelines that have been drained and open the other one. And so on until the hot water enters the underfloor heating pipes.