Butterfly valve is a commonly used fluid control component. It is mainly composed of valve body, valve plate, valve stem and other parts. Its working principle is mainly to control the flow and pressure of the medium through the change of the opening angle.
Butterfly valves have many advantages, such as simple structure, small size, light weight, flexible operation, convenient maintenance and so on. In the regulation and control process of liquid and gas, butterfly valve is a very important control element, which is often used to regulate and cut off the flow of medium in the pipeline.
The working principle of the butterfly valve is based on a simple concept: when the medium flows through the pipeline, the angle of the valve plate can be adjusted to control the flow rate. The valve plate of the butterfly valve is usually located in the center of the pipeline. With the rotation of the butterfly valve, the valve plate will move closer or farther from the center of the pipeline to the pipeline wall, thereby controlling the flow rate.
For the control of liquid, due to the large area of the valve plate, when the pressure of the valve body is greater than the pressure of the medium, the valve plate will be close to the valve body, forming a basically undisturbed state with small resistance, making the flow of liquid smoother; in the process of gas, due to The gas has good compressibility, even if the valve plate is close to the valve body to form a small resistance, it will not significantly affect the gas flow.
Typically, butterfly valves are more common when pipelines need to close quickly or open quickly. The use of butterfly valves in these scenarios can quickly stop or increase the flow in the pipeline, which is very useful for supply chain operations such as steam and oil transmission.
Butterfly valves are widely used, such as in refining, chemical, water treatment, food, pharmaceutical and other industries. Common media in these industries include water, oil, gas, etc. Butterfly valves can efficiently complete control work in these industries through their unique working principles.
In conclusion, the butterfly valve is a general fluid control valve with a wide range of applications. In the occasions where the flow and pressure of the medium need to be controlled, the butterfly valve is an efficient, simple and flexible control element. Its working principle is both realistic and reliable, and it provides important services for many industrial fields.