How to adjust if the specification and model table of flange pneumatic butterfly valve cannot be closed properly? The reason why pneumatic butterfly valve is so widely used is that it effectively utilizes the following characteristics:
1) High elasticity and viscoelasticity;
2) Compared with steel material, the elastic deformation is very large and the elastic modulus is very small;
3) The impact stiffness of is greater than the dynamic stiffness, and the dynamic stiffness is greater than the static stiffness, which is conducive to reducing the impact deformation and dynamic deformation;
4) The stress-strain curve is an elliptical hysteresis line, and its area is equal to the vibration energy (damping) converted into heat in each vibration cycle, which can be adjusted through formula design;
5) Is incompressible material (Poisson's ratio is 0.5);
6) The shape can be freely selected, and the hardness can be adjusted through formula design to meet the requirements of stiffness and strength in different directions.
