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The performance of hydraulic seals

Jun 19, 2020

The performance of hydraulic seals

As the pressure of the hydraulic oil increases, the sealing effect is automatically improved. Even under the harsh working environment of high pressure and high temperature, the leakage of the hydraulic seal has not increased significantly.

Good compatibility Because hydraulic seals are immersed in hydraulic oil for a long time, they are easy to swell, dissolve or embrittle and harden, which makes them lose their sealing effect. Therefore, hydraulic seals are required to have good compatibility with hydraulic oil.

Low friction resistance In order to avoid or reduce the adverse phenomena such as low-pressure crawling caused by hydraulic equipment, hydraulic seals are required to have low static friction resistance and dynamic friction resistance, and the friction coefficient should be very stable.

Long service life The hydraulic seal should have good elasticity, heat resistance, cold resistance, pressure resistance, wear resistance and certain physical and mechanical strength, etc., and have a long service life.

Low-cost hydraulic seals should be easy to manufacture and install, and their corresponding sealing grooves are easy to process and manufacture, and the requirements for the machining accuracy of the sealing surface are low, and they are low-cost and inexpensive

Hydraulic piston rod seal (2)

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