The commonly used sealing pressure hydraulic seals are mainly rings, circular rings, rectangular sealing rings, etc. They have some advantages, such as simple structure, easy manufacturing, and low-cost gaming, so they are widely used as sealing components for dynamic and static sealing in hydraulic transmission systems. They are usually installed in the sealing groove to generate 10-25% radial compression deformation, with relatively high initial contact pressure on the sealing surface, without pressure, to prevent liquid leakage.

The hydraulic cylinder, pressure liquid extrusion seal, and pressure hydraulic seal further deform, and the pressure between the sealing surface and the liquid is greater, strictly speaking, it should be pressure. The increasing additional contact stress and initial contact stress prevent the leakage of liquid pressure. However, when the working pressure is greater than 10 MPa, in order to avoid leakage caused by the compression type hydraulic seal of the quality synthetic rubber sealing part cutting off the reciprocating motion of the hydraulic cylinder in the sealing gap, it is necessary to combine the pressure surface of the quality compression type hydraulic seal of the synthetic rubber seal with resin protective rings, such as nylon protective rings, formaldehyde collars, and filled polytetrafluoroethylene rings.

1. Good wear resistance, strong tear strength, and excellent bending strength;

2. Tensile strength and fracture elongation rate;

3. High temperature resistance and mild temperature (30~+110 degrees);

4. Wide adjustable range of hardness (shade, 80-95);

5. Low compression deformation rate;

6. Good oil and corrosion resistance, solvent resistance, high mechanical strength, and long service life;

7. The ozone aging resistance is very high.

8. Non toxic and meets the requirements of environmental protection.