Pneumatic ball valve ----- pneumatic ball valve for fan, pump and air conditioner
There are actually two classifications of shock absorbers, one is function classification, the other is appearance classification. According to their functions, shock absorbers are roughly classified as follows:
1. Support various installed shock absorbers in a narrow sense;
2. Buffer for shock absorption;
3. Ball valves used as mechanical actuating parts;
4. Dynamic shock absorber to eliminate vibration of specific vibration frequency;
5. Couplings are also included in the shock absorber category.
Shock absorbers are classified as follows in narrow sense of appearance:
1. Compression type: this type of shock absorber is mainly used in the compression direction. The advantage is that the load acceptance force is large, but the elastic coefficient in the tightening direction cannot be too low;
2. Shear type: this type of shock absorber is mainly used in the shear direction. Its load bearing force is small, but it has the advantage that the elastic coefficient can be selected very small;
3. Composite type: shock absorber used in the combined direction of compression and shear, with the intermediate characteristics of compression and shear;
4. Cylindrical type: this type of shock absorber can be used for vibration reduction in vertical, axial, twisting, prying and bending directions. Similar to the compact alkali vibrator, the one used in the vertical direction of the shaft has a large load acceptance force, but the elastic coefficient cannot be too small.