The electric plastic ball valve can be closed tightly only with 90 degree rotation and small rotation torque. The completely equal inner cavity of the valve body provides a small resistance and straight passage for the medium.
It is generally considered that the ball valve is most suitable for direct opening and closing, but recent development has designed the ball valve for throttling and flow control. The main feature of ball valve is its compact structure, easy operation and maintenance, suitable for water, solvent, acid and natural gas and other general working media, but also suitable for poor working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene. The valve body of ball valve can be integral or combined.
Ball valve has been widely used in petroleum, chemical, liquefied gas, water supply and drainage, food, pharmaceutical, power generation, papermaking, urban construction, mineral, boiler steam system, municipal, atomic energy, aviation, rocket and other departments, as well as people's daily life.
Electric plastic ball valve is evolved from plug valve. It has the same rotation 90 degrees lifting action, the difference is that the cock body is a ball, with a circular through hole or channel through its axis. The ratio of the spherical surface to the channel port should be such that when the ball rotates 90 degrees, the inlet and outlet should all be spherical, so as to cut off the flow.
The electric plastic ball valve can be closed tightly only with 90 degree rotation and small rotation torque. The completely equal inner cavity of the valve body provides a small resistance and straight passage for the medium.
It is generally considered that the ball valve is most suitable for direct opening and closing, but recent development has designed the ball valve for throttling and flow control. The main feature of ball valve is its compact structure, easy operation and maintenance, suitable for water, solvent, acid and natural gas and other general working media, but also suitable for poor working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene.
The valve body of ball valve can be integral or combined. The working principle and practical role of electric plastic ball valve the working principle of ball valve is to make the valve unblocked or blocked by rotating the valve.
Ball valve switch light, small size, can be made into a large diameter, reliable sealing, simple structure, convenient maintenance, sealing surface and spherical surface are often closed, not easy to be eroded by the medium, it is widely used in various industries.
Electric plastic ball valve and plug valve belong to the same type of valve, only its closing part is a ball, and the ball rotates around the center line of the valve body to open and close the valve. Ball valve is mainly used to cut off, distribute and change the flow direction of medium in pipeline. Electric plastic ball valve is a new type of valve widely used in recent years.
It has the following advantages:
1. Small fluid resistance, its resistance coefficient is equal to the same length of pipe section.
2. Simple structure, small volume and light weight.
3. It is tight and reliable. At present, the sealing surface material of ball valve is widely made of plastic with good sealing performance, and it has been widely used in vacuum system.
4. Convenient operation, fast opening and closing, from full opening to full closing as long as 90 ° rotation, convenient for remote control.
5. Easy maintenance, simple structure of ball valve, movable sealing ring, easy disassembly and replacement.
6. When the valve is fully opened or closed, the sealing surface of the ball and valve seat is isolated from the medium, and the medium will not cause the erosion of the valve sealing surface.
7. Wide range of application, diameter from small to several millimeters, to several meters, from high vacuum to high pressure can be applied.
The ball valve is mainly used to connect or block the pipeline medium, especially in the parts requiring quick opening and closing, such as emergency unloading. Because of its simple structure, less parts, light weight and good sealing performance, it is widely used
Post time: Feb-16-2023