3. The air opening and air closing modes of the control valve are easy to change. It is only necessary to rotate the butterfly valve plate by 70 ° and fix it with the key and the other key pin of the valve shaft. The actuator of butterfly valve usually adopts positive action actuator. 4. With simple flow path and small flow resistance, it can be used in applications with large diameter, large flow and low pressure difference, and is suitable for fluid control of slurry suspended solids and granular media. 5. Soft sealing method can be adopted to realize tight sealing, which is used for relevant applications in nuclear industry. 6. Corrosion prevention can be achieved by coating or lining, which is used to control corrosive medium fluid. 7. For large diameter butterfly valve, long stroke actuator or piston actuator can be used to obtain large output thrust torque. 8. Small size, light weight, compact structure, simple manufacturing process and low price. 9. In addition to the different materials of valve body and valve plate, the structure of low-temperature butterfly valve and high-temperature butterfly valve is the same as that of normal temperature butterfly valve. There is a long neck pipe between the actuator and the valve body of the cryogenic butterfly valve, which is similar to other cryogenic control valves. The high pressure butterfly valve is made of forged steel and low torque valve plate. Other valves are similar to the normal temperature butterfly valve.

What should we pay attention to when storing? You must remember that this pneumatic control valve can only be stored in a very dry room, and both ends of the passage need to be blocked. When storing, it cannot be stacked for storage. Of course, during storage, it is also necessary to check the regulating valve regularly, clean the dirt on the valve, and coat the moving place and processing surface with antirust oil to prevent the regulating valve from rusting.