What are the requirements and precautions for the flange and clamp type of oxygen check valve?

Oxygen check valve is a kind of check valve, flange and clamp type is the way to connect the pipeline of the check valve, this should be based on the specific situation of your pipeline, what kind of check valve to use, if the gap in the middle of the pipeline is large, you can use the flange type, if vice versa, generally use the clamp type.

The following precautions should be taken into account for the installation of check valves.

1. Do not make the check valve bear weight in the pipeline, and the large check valve should be supported independently so that it is not affected by the pressure generated by the pipeline system.

2. During installation, pay attention to the direction of the medium flow should be consistent with the direction of the arrow marked on the valve body.

3. The lifting vertical flap check valve should be installed on the vertical pipeline.

4. The lifting horizontal flap check valve should be installed on the horizontal pipeline.

Installation. 1. Swing-open check valve: The disc of the swing-open check valve is disc-shaped, and the rotating motion is made around the rotating shaft of the valve seat channel, because the channel in the valve is streamlined, the flow resistance is smaller than that of the lifting check valve, which is suitable for large-diameter occasions with low flow rate and infrequent flow changes, but it is not suitable for pulsating flow, and its sealing performance is not as good as that of the lifting type.

The swing check valve is divided into three types: single valve type, double valve type and more than half type, which are mainly divided according to the diameter of the valve, in order to prevent the medium from flowing or reversing the flow and weaken the hydraulic impact.

2. Lifting check valve: the check valve that slides along the vertical centerline of the valve body, the lifting check valve can only be installed on the horizontal pipeline, and the disc can be used as a round ball on the high-pressure small-diameter check valve. The body shape of the lift check valve is the same as that of the globe valve (which can be used in conjunction with the globe valve), so it has a high coefficient of fluid resistance.

Its structure is similar to that of the globe valve, and the valve body and disc are in phase with the globe valve.

Silent check valve.

Same. The upper part of the valve disc and the lower part of the valve cover are processed with the guide sleeve Jane, the valve disc guide Jane can be freely lifted in the valve lamp guide Jane, when the medium flows downstream, the valve disc is opened by the thrust of the medium, and when the medium stops flowing, the valve disc falls on the valve seat by self-sagging, and plays the role of preventing the medium from counterflowing. The direction of the medium inlet and outlet channel of the straight-through lift check valve is perpendicular to the direction of the valve seat channel; The vertical lifting check valve has the same direction as the direction of the medium inlet and outlet channel and the valve seat channel, and its flow resistance is smaller than that of the straight type.

3. Disc check valve: a check valve in which the disc rotates around the pin shaft in the valve seat. The disc check valve has a simple structure and can only be installed on a horizontal pipeline, which has poor sealing.

4. Pipeline check valve: a valve in which the disc slides along the centerline of the valve body. Pipeline.

Check valve is a new kind of valve, which is one of the development directions of check valve, which is small in size, light in weight and good in processing technology. However, the coefficient of fluid resistance is slightly larger than that of swing check valves.

5. Compression check valve: This kind of valve is used as a boiler feed water and steam shut-off valve, which has the comprehensive function of lifting check valve and stop valve or angle valve.

In addition, there are some check valves that are not suitable for pump outlet installation, such as foot valves, spring valves, Y-type and other check valves.

Flange connection and clamp connection is just a connection method, the medium of the oxygen check valve is oxygen, the estimated pressure and temperature are not high and there is no corrosiveness, the gasket can be made of non-rubber, and the ordinary connection ensures that it is sealed, which is very simple.

Here are some of the well-known brands recognized in the clamp check 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.

There are no precautions for this, and the main seal should be good and not leaky.