Picture of pneumatic ball valve and automatic butterfly valve distribution box Difference between solenoid valve and electric butterfly valve? Pneumatic butterfly valve is mainly used in pipelines for fast blocking speed, distribution and change of the moving direction of the medium. Pneumatic butterfly valve is a new type valve, which has the following advantages:
1. The fluid resistance is small, and its resistance coefficient is equal to that of pipe sections with the same length.
2. Simple structure, small volume and light weight.
3. Tight and reliable. The sealing surface of butterfly valve is widely made of plastic and has good sealing performance. It has also been widely used in vacuum system.
4. Convenient operation, quick opening and closing, only 90 ° rotation from full opening to full closing, convenient for remote control.
5. It is easy to repair. The pneumatic butterfly valve has a simple structure. The sealing ring is usually movable, so it is convenient to disassemble and replace it.
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 corrosion on the sealing surface of the valve during the passage period.
7. It has a wide range of applications, ranging from a few millimeters to several meters in diameter, from high vacuum to high pressure.
8. Since the power source of pneumatic butterfly valve is gas, which is generally 0.2-0.8MPa, it is relatively safe. If the pneumatic butterfly valve leaks, compared with the hydraulic and electric valves, the gas can be discharged directly, which does not pollute the environment and has high safety.
9. Compared with manual and turbine rolling butterfly valves, pneumatic butterfly valves can be configured with large diameter (manual and turbine rolling butterfly valves are generally below DN300 diameter, and pneumatic butterfly valves can reach DN1200 diameter)
、 Pneumatic butterfly valve and pneumatic butterfly valve have different actuators due to different driving modes. The pneumatic butterfly valve uses the air source as the driving energy, and the actuator is the corresponding electric actuator; The pneumatic butterfly valve uses the power supply as the de jacking energy source, and the actuator is an electric actuator. The difference between the two actuators results in the difference in the working condition, environment and pipeline of its application, but its superior technical performance has won the favor of users in the industry.
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