Design and structural analysis of Chinese flange connected midline butterfly valves

Design and structural analysis of Chinese flange connected midline butterfly valves

This article focuses on the design and structural characteristics of Chinese flange connected midline butterfly valves. Through a detailed introduction to the various components of the valve, it aims to help readers gain a deeper understanding of the working principle and advantages of midline butterfly valves.

1、 Introduction

The Chinese flange connected midline butterfly valve is a widely used regulating valve in industrial pipeline systems. Its simple structure, convenient operation, and wide range of flow regulation make it highly popular in many industries. This article will provide a detailed introduction to the design and structure of Chinese flange connected midline butterfly valves.

2、 Design principle of Chinese flange connected midline butterfly valve

1. The overall design of the butterfly valve follows the principles of fluid mechanics, ensuring that the valve has minimal fluid resistance during opening and closing.

2. According to the working conditions, select materials reasonably to ensure that the valve meets practical requirements in terms of service life and safety.

3. The valve design fully considers the convenience of operation, maintenance, and stability of the valve structure.

3、 Main structural components of Chinese flange connected midline butterfly valves

1. Valve body: The valve body is the basic component of a butterfly valve, used to connect upstream and downstream pipelines and withstand the pressure inside the pipeline.

2. Valve disc: The valve disc is a component corresponding to the valve body that rotates to open and close the valve.

3. Valve stem: The valve stem connects the valve disc and the driving device, transmitting driving force to rotate the valve disc.

4. Driving device: According to different working conditions, manual wheel, electric device and other driving methods can be selected.

5. Seals: The seals of butterfly valves include the seals between the valve and flange, the seals between the valve disc and the valve body, etc. Commonly used sealing materials include rubber, polytetrafluoroethylene, etc.

6. Adjustment device: used to adjust the opening of the valve and achieve precise flow control.

4、 Advantages of Chinese flange connected midline butterfly valves

1. Simple structure, easy installation and maintenance.

2. Low fluid resistance and low energy consumption.

3. High adjustment accuracy, enabling precise flow control.

4. Good sealing performance and long service life.

5. It has a wide range of applications and can be used in various media and working conditions.

5、 Conclusion

Chinese flange connected midline butterfly valves play an important role in industrial pipeline systems due to their excellent design and structural characteristics. Understanding its design principles and structural characteristics can help to better select and use centerline butterfly valves, and maximize the advantages of the valve. In practical applications, it is also necessary to choose appropriate materials and driving methods based on the specific situation to ensure the safe, stable, and efficient operation of the valve.