The difference between Chinese butterfly valves and Chinese ball valves: Understand the characteristics and uses of these two common valves
In fluid control equipment, Chinese butterfly valves and Chinese ball valves are two common types of valves. Although they differ in structure and mode of operation, they all play an important role in a variety of industrial applications. This article will explore the characteristics and uses of these two valves from a professional perspective.
1. Structural differences
China butterfly valve is a valve that rotates 90 degrees, its operating principle is to drive the disc-shaped butterfly plate to rotate around the axis by rotating the handle or the actuator, so as to realize the opening and closing of the valve. The opening and closing of the butterfly plate are moved parallel to the axis, which makes the Chinese butterfly valve have a small flow resistance.
In contrast, the Chinese ball valve is a ball, its operating principle is to drive the stem by turning the hand wheel or actuator, so that the stem drives the ball to turn 90 degrees, so as to achieve the opening and closing of the valve. The opening and closing of the ball is moved vertically along the axis, which makes the ball valve have a large flow resistance.
2. Use difference
Because of its small flow resistance and high sealing performance, Chinese butterfly valves are usually used in systems requiring frequent switching and tight control, such as water treatment, chemical, food and beverage industries. In addition, the Chinese butterfly valve can also be used as a device to adjust the flow, by changing the rotation Angle of the disc disc, you can change the opening degree of the valve, so as to achieve the control of the fluid flow.
Because of its large flow resistance and better sealing performance, ball valves are usually used in systems requiring large flow, such as oil, gas, chemical and electric power industries. In addition, the ball valve can also be used as a device to cut off the fluid, by quickly closing the valve, you can quickly cut off the flow of fluid.
3. Maintain differences
The structure of Chinese butterfly valve is relatively simple, and the maintenance cost is relatively low. However, due to its small flow resistance, it may lead to wear of the sealing surface, so it needs regular inspection and maintenance.
In contrast, the structure of China’s ball valve is more complex, and the maintenance cost is relatively high. However, due to its large flow resistance and good sealing performance, its service life is usually long.
In summary, Chinese butterfly valves and Chinese ball valves have advantages and disadvantages, and are suitable for different application scenarios. When choosing which valve to use, it needs to be considered according to the specific working conditions and needs.
Post time: Oct-10-2023
