Is there a check valve on the pump? Does the self priming water pump have its own check function ch

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 pump is equipped with a check valve.

Hello, what did you bring.

Because the reverse valve on the self-priming pump is the check valve.

Check valve refers to the valve that automatically opens and closes the valve disc by relying on the flow of the medium itself, and is used to prevent the backflow of the medium, also known as check valve, check valve, reverse flow valve, and back pressure valve. The check valve is a kind of automatic valve, and its main function is to prevent the backflow of the medium, prevent the pump and the drive motor from reversing, and the discharge of the container medium. Check valves can also be used on lines that supply auxiliary systems where pressure may rise above the system pressure.

Check valves can be mainly divided into swing-type check valves (rotating according to the center of gravity) and lifting check valves (moving along the axis).

Check valve refers to the valve that automatically opens and closes the valve disc by relying on the flow of the medium itself to prevent the medium from backflowing, also known as check valve, check valve, reverse flow valve, and back pressure valve. The check valve is an automatic valve, and its main function is to prevent the backflow of the medium, prevent the pump and the drive motor from reversing, and the discharge of the container medium. Check valves can also be used to supply auxiliary systems where the pressure may rise to more than the system pressure is exceeded.

Check valves can be mainly divided into swing-type check valves (rotating according to the center of gravity) and lifting check valves (moving along the axis). The purpose of this type of valve is to allow the flow of the medium in only one direction and to prevent it from flowing in one direction. Usually this kind of valve works automatically, and the disc opens under the action of fluid pressure flowing in one direction; When the fluid flows in the opposite direction, the fluid pressure and the self-reclosing disc of the disc act on the head of the valve seat, thus cutting off the flow.

The circulating pump does not need to be closed when the return valve is opened. To abandon its principle, first, such as geothermal heating will be the return water for circulationWater cycleuse, you should not close the return valve, just like the ** air conditioner through the cold water circulation, you don't need to close the return valve. The circulating pump is connected in seriesReturn pipesOn the road, the main purpose is to increase the circulation of water, increase the pressure of water circulation, and the water and return pipelines must be unblocked.

The use of heating circulation pump has brought convenience to home life. How to use the heating circulating pump: first plug in the power cord of the circulating pump and let it power on normally. Place the thermostat.

set the time and adjust the temperature so that it is between 38 and 42 degrees. When the water temperature reaches a certain heat, it will start to circulate. If you are using a circulating pump for the first time, you will also need to do exhaust work.

Before installing the circulating pump, it is necessary to check the water inlet and outlet of the heating pipe to see if there are stains inside, so as to clean it up in time to prevent the blockage of the pipeline, which is not conducive to normal use.

Hello, glad to have your problem, according to the situation you described, it is generally suspected that the water stop valve at the inlet of the self-priming pump of the equipment is broken, and the water pumped out is returned. Solution: Just change the water stop valve.

Hopefully, I hope it can help you, I wish you a happy life, you can consult me if you have any questions, smile

The bottom valve of the suction pipe of the centrifugal pump is also a check valve, which is to prevent the liquid from flowing out of the pump before the stove is stopped, and it is a one-way valve to prevent the material in the pump inlet pipe from flowing into the pool when the pump is stopped, resulting in no material in the inlet pipeline. In this way, when the pump is started again, there is no need to fill the pump bottom valve, and it can be equipped with a strainer, which can block the solid particles in the liquid from being sucked in and clogging the pipe and pump casing. Therefore, the foot valve and the strainer can be combined, each with a different function.

If the inlet pipeline of the centrifugal pump is lower than the inlet of the centrifugal pump, for example, the centrifugal hidden balance pump is installed on the ground, and the material below the ground must be pumped, and the bottom valve should be installed at the end of the suction pipe of the centrifugal pump, which can filter impurities, protect the pump from being blocked, and can also be stopped to ensure that the inlet pipeline of the centrifugal pump is full and the pump is filled. Hope it helps.

The check valve must be installed at the outlet of the pump, and the position before the outlet control valve is checked in the center to facilitate access to the check valve, and the reasons for installing it in this position are as follows:

Regarding the problem of water reflux, because the fluid is continuous and not incompressible, as long as it is cut off at any position in the pipeline, the water at any point in the pipeline will not flow for many years; The self-priming exhaust is formed in the pump, not on the outlet pipeline, and the check valve is installed at the inlet, because of its low pressure, it is not conducive to the automatic opening of the check valve, and the resistance it generates, it is easy to form the pump's evacuation and cavitation.