Working Principle and Advantages of Pneumatic Ball Valves
The pneumatic ball valve has evolved from the plug valve. It has the same 90-degree rotation action. The difference lies in that the stopcock body is a sphere with a circular through-hole or passage through its axis. The ratio of the sphere and the port should be such that when the ball rotates 90 degrees. The inlet and outlet should all be spherical, therefore,edr it can block the flow. This type of valves can be installed in any position in the pipeline.
The working principle of pneumatic ball valves
The pneumatic ball valve only needs to use the pneumatic actuator to drive the valve body to rotate 90 degrees. You can realize the flow of the medium to cut off and open the function. It requires only a small rotational moment to close tightly. Completely equal body cavity for the medium can provide a low resistance and a straight passage. It is usually thought that ball valves are most suitable for direct open and close use. However, recent developments of the valves have been designed to make it with throttling and flow control. The main feature of the ball valve is its compact structure, easy operation and maintenance. It is suitable for water, solvents, acids and natural gas and other general working media, and it is also suitable for poor working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene. The ball valve body can be integral. It can also be combined.
Advantages of the pneumatic ball valve
The pneumatic ball valve in the pipeline is mainly used to cut off the speed, distribution and change the flow direction of the medium. The pneumatic ball valve is a new type of valve widely used in recent years. It has the following advantages.
1. The fluid resistance is small, and its resistance coefficient is equal to the pipe segment of the same length.
2. Simple structure, small volume and light weight
3. It is tight and reliable. The widely used material of the sealing surface of ball valves is plastic. The sealing is good, and it has been widely used in the vacuum system.
4. It is easy to operate, open and close quickly. It can only rotate 90 degrees from fully open to fully closed. It is also easy to remote control.
5. It is convenient for maintenance. The structure of the pneumatic ball valve is simple. The sealing ring is generally active. The disassembly and replacement are more convenient.
6. When it is fully open or fully closed, the sealing surface of the ball and the valve seat are isolated from the medium. It will not cause erosion of the sealing surface of valves.
7. It has a wide range of applications. The diameter is from a few millimeters to a few meters. It can be applied from the high vacuum to high pressure.
8. Because the pneumatic ball valve power source is gas, the pressure is generally 0.2-0.8mpa, which is relatively safe. The gas can be directly discharged if the pneumatic ball valve leaks compared to the hydraulic ball valve and the electric ball valve. It has no pollution to the environment, and has high safety.
9. Compared with manual and turbine rotary ball valves, pneumatic ball valves can be configured with large caliber. (The caliber of manual and turbine rotary ball valves are generally below DN300, and the caliber of pneumatic ball valves can reach DN1200 now.)
The pneumatic ball valve has been widely used in petroleum, chemical, power generation, paper, atomic energy, aviation, rocket and other departments, as well as in people's daily lives. The pneumatic ball valve is made of manual stainless steel flange ball valves on the basis of pneumatic actuators. When the air source passes through the pneumatic actuator, the actuator will push the valve to open and close the relevant action. It has good control effect and strong sealing performance. It has been widely used in a variety of corrosive conditions.
The working principle of pneumatic ball valves
The pneumatic ball valve only needs to use the pneumatic actuator to drive the valve body to rotate 90 degrees. You can realize the flow of the medium to cut off and open the function. It requires only a small rotational moment to close tightly. Completely equal body cavity for the medium can provide a low resistance and a straight passage. It is usually thought that ball valves are most suitable for direct open and close use. However, recent developments of the valves have been designed to make it with throttling and flow control. The main feature of the ball valve is its compact structure, easy operation and maintenance. It is suitable for water, solvents, acids and natural gas and other general working media, and it is also suitable for poor working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene. The ball valve body can be integral. It can also be combined.
Advantages of the pneumatic ball valve
The pneumatic ball valve in the pipeline is mainly used to cut off the speed, distribution and change the flow direction of the medium. The pneumatic ball valve is a new type of valve widely used in recent years. It has the following advantages.
1. The fluid resistance is small, and its resistance coefficient is equal to the pipe segment of the same length.
2. Simple structure, small volume and light weight
3. It is tight and reliable. The widely used material of the sealing surface of ball valves is plastic. The sealing is good, and it has been widely used in the vacuum system.
4. It is easy to operate, open and close quickly. It can only rotate 90 degrees from fully open to fully closed. It is also easy to remote control.
5. It is convenient for maintenance. The structure of the pneumatic ball valve is simple. The sealing ring is generally active. The disassembly and replacement are more convenient.
6. When it is fully open or fully closed, the sealing surface of the ball and the valve seat are isolated from the medium. It will not cause erosion of the sealing surface of valves.
7. It has a wide range of applications. The diameter is from a few millimeters to a few meters. It can be applied from the high vacuum to high pressure.
8. Because the pneumatic ball valve power source is gas, the pressure is generally 0.2-0.8mpa, which is relatively safe. The gas can be directly discharged if the pneumatic ball valve leaks compared to the hydraulic ball valve and the electric ball valve. It has no pollution to the environment, and has high safety.
9. Compared with manual and turbine rotary ball valves, pneumatic ball valves can be configured with large caliber. (The caliber of manual and turbine rotary ball valves are generally below DN300, and the caliber of pneumatic ball valves can reach DN1200 now.)
The pneumatic ball valve has been widely used in petroleum, chemical, power generation, paper, atomic energy, aviation, rocket and other departments, as well as in people's daily lives. The pneumatic ball valve is made of manual stainless steel flange ball valves on the basis of pneumatic actuators. When the air source passes through the pneumatic actuator, the actuator will push the valve to open and close the relevant action. It has good control effect and strong sealing performance. It has been widely used in a variety of corrosive conditions.
