What kind of check valve can maintain pressure, how to choose the pressure of the check valve?

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.

What do you mean by keeping the pressure on?

1. When selecting check valves, the size of the pressure level should correspond to the pressure level of the pipeline. 2. Check valves, like other valves, have a pressure level of MPA and so on. If your pipe is between standard pressures, choose one pressure level higher.

For example, the minimum check valve for pipeline pressure.

Check valve refers to a kind of valve that has a circular disc opening and closing parts and relies on its own weight and medium pressure to block the backflow of medium. It is an automatic valve, also known as check valve, check valve, return valve or isolation valve. The disc movement mode is divided into lifting type and swing type.

The lift check valve is similar in structure to the globe valve, with only the stem that drives the disc missing.

The medium flows in from the inlet (bottom) and out from the outlet (top). The valve is opened when the inlet pressure is greater than the sum of the disc weight and its flow resistance. Conversely, the valve is closed when the medium flows backwards.

Swing-start check valves have a tilted disc that rotates around the shaft and work similarly to a lift-lift check valve. Check valves are often used as foot valves for pumping devices to stop the backflow of water. The check valve is used in combination with the globe valve to play the role of safety isolation.

The disadvantage is that the resistance is high and the sealing is poor when closed.

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 valves are this type of valve that allows the flow of media in only one direction and prevents it from flowing in the opposite 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-closing disc of the disc act on the valve seat, thus cutting off the flow.

Among them, check valves belong to this type of valve, which includes swing check valves and lifting check valves. The swing check valve has a medium hinge mechanism and a door-like disc resting freely against the sloping seat surface. In order to ensure that the disc reaches the right position on the seat surface every time, the disc is designed with a hinge mechanism so that the disc has enough room to swing and that the disc is in true and full contact with the seat.

The disc can be made entirely of metal, or it can be inlaid with leather, rubber, or synthetic overlay, depending on the performance requirements. When fully open, the fluid pressure is virtually unhindered, so the pressure drop through the valve is relatively small.

The disc of the lift check valve is located on the seat seal on the valve body. Except for the disc that can be raised and lowered freely, the rest of the valve is like a globe valve, the fluid pressure lifts the disc from the sealing surface of the valve seat, and the backflow of the medium causes the disc to fall back to the valve seat and cut off the flow.

Depending on the conditions of use, the disc can be an all-metal construction or in the form of a rubber pad or rubber ring inlaid on the disc holder. Like globe valves, the passage of fluid through a lift check valve is narrow, so the pressure drop through a lift check valve is greater than that of a swing check valve, and the flow rate of the swing check valve is less restricted.

Summary. Hello, <>

The slow-closing check valve will basically not affect the pressure.

Does a slow-closing check valve affect the pressure.

Hello, <>

The slow-closing check valve will basically not affect the pressure.

I have four pumps, Yang Cheng is 60 meters, all can only hit 4 kg of pressure, hello, <> our slow-closing check valve is a kind of valve that can prevent the fluid from flowing back, he can automatically open when the fluid flows, and can automatically close when the flow of the water, so as to protect the pipeline and equipment Ha [little red flower]. We are as slow as the socks and cautious closing check valve on the pressure of the fluid will not have an effect on the dispersion of the fluid, because his main role is to prevent the fluid from flowing backwards, he does not stop the flow of the fluid. Therefore, the installation of our slow-closing check valve will not have a significant <>impact on the fluid pressure

Hello, <>

If we want to increase the pressure of the pump, we can consider increasing the number of pumps or replacing the pump with a higher head. We also need to pay attention to the diameter of the pipe and the length of the pipeline, so as to ensure that the water flows smoothly and avoid the flow and pressure drop due to excessive resistance of the pipeline.

Summary. Hello, glad to answer for you! 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.

The pressure reducing valve is a throttling element whose local resistance can be changed, which causes different pressure losses by changing the throttling area, changing the flow rate and the kinetic energy of the fluid, so as to achieve the purpose of pressure reduction. Then, relying on the adjustment of the control and regulation system, the fluctuation of the pressure behind the valve is balanced with the spring force, so that the pressure behind the valve is kept constant within a certain error range.

Hello, I'm glad to answer for you! 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. The pressure reducing valve is a throttle element element that can change the local resistance, which causes different pressure losses by changing the throttle area, changing the flow rate and the kinetic energy of the fluid, so as to achieve the purpose of pressure reduction.

Then, relying on the adjustment of the control and adjustment system, the fluctuation of the pressure behind the valve is balanced with the spring force, so that the pressure behind the valve is kept constant within a certain error range.

That is to say, the check valve is automatically opened and closed by relying on the flow of the fluid itself, but the pressure reducing valve only changes the fluid and flow rate by changing the throttle area.

I hope mine will be helpful to you and I wish you a happy life

Just look at the name and you'll understand!

You wouldn't be fitting the 300x slow-closing check valve (multi-energy pump control valve) at the pump outlet as a pressure reducing valve, would you?

These two can't be replaced!

In the case that the screws cannot be removed, you can consider converting the accessories.