The requirement for minimal leakage of hydraulic seals is that the leakage of hydraulic seals will not differ significantly in various working conditions. Some people may wonder, what characteristics are required for such seals?
1) The dynamic and static friction resistance should be minimized as much as possible
Suitable is the best, and if there is unnecessary friction resistance, it will undoubtedly increase the power consumption of the equipment and shorten its service life. In order to avoid and reduce the adverse working conditions of hydraulic crawling caused by hydraulic equipment, hydraulic seals need to have as low static and dynamic friction resistance as possible, and eliminate the phenomenon of uneven speed (accompanied by vibration and abnormal noise) of the piston rod under the action of oil pressure.
2) Good compatibility is required
Many hydraulic seals are exposed to a closed working environment of hydraulic oil for a long time. If soaked for a long time, hydraulic seals with poor compatibility will experience swelling, dissolution, or direct embrittlement and hardening. Due to compatibility issues, these hydraulic seals will gradually lose their sealing effect after a period of time.
3) Low price
Regardless of the product, cost-effectiveness is also within the scope of consideration. Hydraulic seals are easy to manufacture and install, so their prices are generally low.
4) Long service life
A good product, in addition to good compatibility and stable friction coefficient, also needs to have good elasticity, heat resistance, cold resistance, pressure resistance, wear resistance, and certain physical and mechanical strength. Small hydraulic seals, although small, require many characteristics, and none of them are missing, which will affect their service life.