Selection Principle Of Seals

Sealing device: the function of the sealing device is to prevent the internal and external leakage of the working medium in the hydraulic system, as well as the entry of foreign matters such as external dust and metal chips, so as to ensure the normal operation of the hydraulic system.
Main requirements of hydraulic system for sealing device:
1. It can be well sealed within a certain pressure and temperature range;
2. The friction of relatively moving sealing device shall be small;
3. Wear resistance, corrosion resistance, aging resistance, long service life, and automatic compensation after wear to a certain extent;
4. Simple structure, convenient installation and maintenance, and low price;