Butterfly Valve ‘Deformation Gauge’: The Legendary Story of China’s Telescopic Flange Butterfly Valves

Butterfly Valve ‘Deformation Gauge’: The Legendary Story of China’s Telescopic Flange Butterfly Valves

In the field of engineering, butterfly valves, as a common fluid control equipment, are widely popular for their unique structure and excellent performance. Among many types of butterfly valves, the Chinese telescopic flange butterfly valve is undoubtedly one of the legendary works.

1、 “Deformation gauge” for butterfly valves

The evolution of butterfly valves can be said to be a microcosm of innovation and development in the field of engineering. From the original traditional butterfly valve to later eccentric butterfly valve, turbine butterfly valve, telescopic butterfly valve, etc., the birth of each butterfly valve to some extent solved the problems faced in the engineering field at that time.

1. Traditional butterfly valve: The structure of traditional butterfly valve is relatively simple, mainly composed of valve body, valve disc (disc), valve shaft, bearings, and sealing device. The valve disc rotates around an axis inside the valve seat, and the size of the rotation angle determines the opening and closing degree of the valve. Traditional butterfly valves have certain application value in the field of fluid control, but their sealing performance and adjustment accuracy still need to be improved.

2. Eccentric butterfly valve: Eccentric butterfly valve adopts an eccentric structure on the basis of traditional butterfly valve, which ensures that there is no sliding friction or jamming between the disc sealing ring and the valve seat sealing surface during the opening and closing process, thereby improving the sealing performance. In addition, eccentric butterfly valves also have good flow regulation performance and are widely used in various industrial pipelines.

3. Turbine butterfly valve: A turbine butterfly valve is a butterfly valve that uses a turbine transmission method. It has a compact structure, easy operation, good sealing performance, and flow control ability. Turbine butterfly valves are widely used in water supply and drainage, gas pipelines, and other industries such as food, medicine, chemical, and petroleum.

4. Chinese expansion flange butterfly valve: On the basis of inheriting the excellent performance of butterfly valves, Chinese expansion flange butterfly valves have added expansion and contraction functions. Its main structure includes valve body, live body, valve shaft, bearings, sealing device, operating mechanism, and accessory components. Expansion butterfly valves are suitable for regulating flow and intercepting media on water supply and gas pipelines in food, medicine, chemical, petroleum, power, light textile, papermaking, and other industries with a temperature of 80 ℃ and a nominal pressure of 1.6 MPa.

2、 The Legendary Story of Chinese Expansion and Expansion Flange Butterfly Valves

1. Novel and Reasonable Design: The Chinese telescopic flange butterfly valve adopts a novel and reasonable design approach, which makes the valve structure unique, lightweight, easy to operate, and quickly open and close.

2. Compensating for thermal expansion and contraction of pipelines: The expansion butterfly valve has a good function of compensating for thermal expansion and contraction of pipelines. When the pipeline temperature changes, the valve can automatically adjust its position to ensure stable flow.

3. Easy installation, replacement, and maintenance: The design of the telescopic butterfly valve fully considers the needs of installation, replacement, and maintenance, making the valve provide great convenience in these aspects.

4. Reliable sealing performance: The sealing part of the telescopic butterfly valve can be adjusted and replaced, ensuring reliable sealing performance. Reducing the risk of leakage while ensuring stable valve operation.

5. Widely used: Chinese telescopic flange butterfly valves are widely used in various industrial pipelines, such as food, medicine, chemical, petroleum, power, light textile, paper and other industries. Whether it is water supply and drainage, gas pipelines, or heating pipelines, its presence can be seen.

3、 Conclusion

As a legendary butterfly valve product, China’s telescopic flange butterfly valve has become a shining pearl in the engineering field due to its excellent performance and wide application. With the continuous progress of technology and the diversification of engineering needs, it is believed that in the future, the butterfly valve family will become even larger and contribute more to the development of human society.