1.In order to supplement the size tolerance of groove a hydraulic cylinder barrel owns itself, whatever for the seal or the cylinder barrel, volume production must be under strict request of size tolerance and roughness of groove;
2.Once the producer ignores such specifications during processing, on one hand, if the groove is too deep, the space between groove and the bottom of the seal will results in disability of fixture of parts, and also low-pressure leakage of oil caused by variation of magnitude of interference and bounciness between lip and surface of the seal. On the opposite, a shallow groove can accelerate the damage of the seal lip and oil leakage occurs easily too.
3.Usually doing reciprocating works, a lip seal shapes generally like L, U, V and Y. A good seal can be gained by outline designing which enables the sealing surface to touch lip edge during reciprocating motion. The contact force and surface of seal is small. But as pressure changes during reciprocating motion, it changes relatively,
To keep a hydraulic system in good conditions for continuous good performance and completion of tasks, hydraulic fluid should be renewed timely according to its state. It’s vital for a hydraulic system to replace hydraulic fluid at certain interval for keeping normal operation and reasonable utilization of resources.
