The structure and working principle of Chinese flange connected midline butterfly valve and its application in engineering

The structure and working principle of Chinese flange connected midline butterfly valve and its application in engineering

Abstract: As an important control equipment widely used in industrial pipeline systems, the structure and working principle of Chinese flange connected midline butterfly valves are hot topics in the engineering field. This article will provide a detailed introduction to the structure, working principle, application and advantages of Chinese flange connected midline butterfly valves in engineering, providing useful reference for engineering technicians in related fields.

1、 Introduction

With the continuous development of modern industry, the application of valves in engineering is becoming more and more widespread. Among them, Chinese flange connected midline butterfly valves are favored by engineering personnel due to their excellent performance and convenient installation and maintenance. Chinese flange connected midline butterfly valves are widely used in various industrial pipeline systems, playing an important role in regulating flow, controlling pressure, and cutting off media. Therefore, it is of great significance for technical personnel in the engineering field to have a deep understanding of the structure and working principle of Chinese flange connected midline butterfly valves.

2、 Structure of Chinese flange connected midline butterfly valves

1. Valve body

The valve body is the main part of Chinese flange connected midline butterfly valves, which plays a role in withstanding medium pressure and supporting other components of the valve. The valve body is usually made of materials such as cast iron, carbon steel, stainless steel, etc., and special treatments such as anti-corrosion and wear resistance can be carried out according to engineering needs.

2. Valve plate

The valve plate is a key component of the Chinese flange connected midline butterfly valve, and the relative movement between it and the valve body realizes the opening and closing of the valve. The valve plate is usually made of stainless steel, wear-resistant materials, etc. to ensure excellent performance of the valve during long-term use.

3. Drive device

The driving device is the power source for controlling the opening and closing of valves, usually using manual, electric, pneumatic, and other methods. In practical engineering, suitable driving devices can be selected as needed.

4. Sealing element

The sealing element is a key component in Chinese flange connected midline butterfly valves to ensure sealing performance, usually made of materials such as rubber and polytetrafluoroethylene. The performance of sealing components directly affects the operational performance and service life of valves.

5. Flange connection

Flange connection is an important method for connecting butterfly valves and pipelines in China, usually using standard connection methods such as national standard flanges and American standard flanges. The reliability of flange connections directly affects the safe operation of valves.

3、 Working principle of Chinese flange connected midline butterfly valve

The working principle of Chinese flange connected midline butterfly valves is mainly achieved by the relative movement of the valve plate and valve body to open and close the valve. When the valve plate is parallel to the valve body, the valve is in an open state and the medium can freely pass through; When the valve plate is perpendicular to the valve body, the valve is in a closed state and the medium cannot pass through. By changing the operating mode of the driving device, the relative movement between the valve plate and the valve body can be achieved, thereby achieving the opening and closing of the valve.

4、 Application of Chinese flange connected midline butterfly valves in engineering

1. Flow control

Chinese flange connected midline butterfly valves are often used for flow control in engineering. By adjusting the opening degree of the valve, the flow control of the medium can be achieved, ensuring the stable operation of the system.

2. Pressure control

The Chinese flange connected midline butterfly valve can also be used for pressure control. By adjusting the opening and closing of the valve, the medium pressure can be controlled to ensure that the system operates within the appropriate pressure range.

3. Cut off the medium

In some engineering projects, it is necessary to cut off the medium. Chinese flange connected midline butterfly valves can achieve medium cutting by closing the valve, ensuring the safe operation of the system.

4. Application under special working conditions

The Chinese flange connected midline butterfly valve also has good corrosion resistance, wear resistance and other performance, and has good application prospects in certain special operating conditions, such as transportation systems for corrosive media such as sulfuric acid and hydrochloric acid.

5、 Conclusion

The Chinese flange connected midline butterfly valve, as an important control equipment widely used in industrial pipeline systems, its structure and working principle are hot topics in the engineering field. Through the introduction of this article, one can understand the structure, working principle, application and advantages in engineering of Chinese flange connected midline butterfly valves, providing useful reference for engineering technicians in related fields. With the continuous development of modern industry, the application of flange connected midline butterfly valves in engineering in China will become increasingly widespread. A deep understanding of their structure and working principles is of great significance for technical personnel in the engineering field.