How about the price of high-performance pneumatic butterfly valve with and without feedback? The air operated butterfly valve for automobiles with large bearing capacity and light weight is called buffer. It controls the unwanted ball valve movement through a process called damping
The shock absorber can slow down and weaken the vibration movement by converting the kinetic energy of suspension movement into heat energy that can be dissipated by hydraulic oil
To understand its working principle, look at the structure and function inside the shock absorber