Minimal leakage requires hydraulic seals to have minimal leakage and have a good sealing effect.
And as the pressure of hydraulic oil increases, its sealing effect is automatically improved. Even in harsh working environments such as high pressure and high temperature, the leakage of hydraulic seals does not increase significantly.
Good compatibility Because the hydraulic seal is immersed in hydraulic oil for a long time, it is easy to swell, dissolve or become brittle and hard, so that it loses its sealing effect. Therefore, the hydraulic seal is required to have good compatibility with hydraulic oil.
Low frictional resistance In order to avoid or reduce undesirable phenomena such as low-pressure crawling of hydraulic equipment, hydraulic seals are required to have low static frictional resistance and dynamic frictional resistance, and their friction coefficient should be very stable.
Long service life Hydraulic seals 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 the corresponding sealing grooves should be easy to manufacture, with low requirements for the machining accuracy of the sealing surface, and low cost.
