What Is A Butterfly Valve

What is a butterfly valve? The butterfly valve is actually a regulating valve with a very simple structure. It is a switch control used for low-pressure pipeline media. It is also called a flap valve. Its structure is also quite simple, consisting of a valve body, a valve stem, a butterfly plate, and a sealing ring. The closing part of the butterfly valve is called the disc or butterfly plate, and its shape is disc-shaped.

2. What is the principle of butterfly valve? The principle of the butterfly valve is actually that when the butterfly plate of the butterfly valve is driven by the valve stem, it can start and close once when it rotates 90 degrees. If the deflection angle of the butterfly plate is changed, the flow of the medium can be controlled. . When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure generated when passing through the valve will drop, so it has better flow control.

3. What are the structural characteristics of butterfly valves? 1. Butterfly valve has very distinctive characteristics, that is, it has the characteristics of simple structure, small size and light weight, very small installation size and very fast switch. The butterfly valve can also be used to cut off, connect and regulate the medium in the pipeline, which shows that the butterfly valve has very good fluid control and closing sealing properties. 2. The butterfly valve can achieve very good sealing characteristics under low pressure and can also be used when transporting mud. The amount of liquid accumulated in the pipe mouth of the butterfly valve is very small, so it has very good regulating performance. . 3. Because the butterfly valve adopts a streamlined design, it can reduce the degree of damage to the fluid resistance. In this way, the butterfly valve can be regarded as an energy-saving product. 4. After the butterfly valve is quenched and tempered, its valve stem also has very good comprehensive mechanical properties, and has good corrosion resistance and scratch resistance, because the butterfly valve stem has a through-rod structure. 5. There are many connection methods for butterfly valves, which can realize manual, turbine transmission, electric, pneumatic, hydraulic and electro-hydraulic linkage driving modes, and can realize long-distance control and automatic operation.