How does the two-way acting cylinder pneumatic butterfly valve work?
What is the working principle of pneumatic butterfly valve! Come and study with me!
During the tightening stroke, it means that the wheel of the car moves close to the body, and the pneumatic butterfly valve is tightened. At this time, the piston 3 in the pneumatic butterfly valve moves downward. The volume of the lower chamber of the piston decreases, the oil pressure increases, and the oil flows through the flow valve 8 to the chamber (upper chamber) above the piston. The upper chamber is partially occupied by the piston rod 1, so the increased volume of the upper chamber is smaller than the decreased volume of the lower chamber, and part of the oil then pushes open the shrink valve 6 and flows back to the storage cylinder 5. The saving of oil by these valves constitutes the damping force of the suspension subjected to tightening movement. When the pneumatic butterfly valve stretches, the wheel is equivalent to being far away from the body, and the pneumatic butterfly valve is stretched. At this time, the piston of the pneumatic butterfly valve moves upward. When the oil pressure in the upper chamber of the piston rises, the flow valve 8 is closed, and the oil in the upper chamber pushes open the stretching valve 4 and flows into the lower chamber. Due to the existence of the piston rod, the oil flowing from the upper chamber is insufficient to fill the increased volume of the lower chamber, which mainly makes the lower chamber produce a vacuum degree. At this time, the oil in the oil cylinder pushes the compensation valve 7 to flow into the lower chamber and stops replenishing. Because of the throttling effect of these valves, the suspension will play a damping role during stretching movement. So as to reach the request of shock absorption!
The above content is about the working principle of the two-way action cylinder pneumatic butterfly valve, which is organized and issued by the small editor. If you need to reprint, please indicate the source! thank you!

Selection and installation precautions of gas pneumatic butterfly valve
At present, there are many kinds of gas pneumatic butterfly valves on the market, which can be a mixture of fish and dragon. If it is necessary to purchase gas pneumatic butterfly valves, you should go to the manufacturers on the right track or learn about the application of products from long-term users and the test results of gas pneumatic butterfly valves over the years issued by the product testing unit for reference. When installing gas pneumatic butterfly valve, it is recommended to invite professional personnel to install it, but if it is installed by non professional personnel, you should pay attention to the following points:
1. The gas pneumatic butterfly valve shall be used immediately after unpacking, and the accumulated bending times of the gas pneumatic butterfly valve caused by multiple bending shall be prevented from causing damage to the pipe body.
2. Check whether rubber sealing ring is installed on the two end joint flange.
3. The pipe body shall not be hung with objects.
4. After removing or disassembling gas appliances, it is necessary to check whether the pipe body and sealing ring are damaged or lost.
5. It is forbidden to impact the pipe body with sharp metal.
6. The main valve of air source must be closed before installation.
7. After installation, apply a small amount of soap solution or detergent solution to the joint, and check whether there is any disclosure caused by improper installation.
8. The gas pneumatic butterfly valve shall not be installed at high temperature, and shall not contact with the flame to prevent the seal ring from deformation.
9. Before installation, the gas pneumatic butterfly valve should be checked to see if there is any unexpected surface damage during transportation.
10. The main air source valve must be closed after use.
The above is related to gas pneumatic butterfly valve, and I hope it can help you.