?Hydraulic seals use

??Hydraulic seals are divided into: a shaft seal, hole sealed, dust-proof seal, guide ring, fixed seal, rotary seals;

??Use the help of a hydraulic seals made of: nitrile rubber, EPDM, fluorine rubber, silicone, fluoro silicone rubber, etc.

??(1) Select the appropriate hydraulic seals and hydraulic oil materials, as well as the operating temperature adaptability, oil compatibility.

??(2) and the hydraulic seal sliding part geometry accuracy (concentricity) good high material (such as hard chrome plating) and surface roughness smaller extended service life.

??? For pumps, used motor oil seal journal requires not only the roughness Ra of the sliding surface in less than 0.25m, and the requirements of its surface hard chrome plating, the specific use will also be required by the circumstances appropriate adjustments seal lip diameter the spring force to an appropriate degree, and mounted in a way to use a mounting sleeve or shim to protect the hydraulic seal to avoid lip rolled, twisted, causing the spring slide.

??? the inner surface of the cylinder roll processing methods commonly used, not only to improve the surface roughness, and it was cold surface hardening treatment, help extend the life of the seal ring. In addition, the use of pressure, the length of the sliding surface and also has a great impact on the type of life. Therefore, you should decide "fixed location" time based on these conditions.

??? sealing surface requires good lubrication to prevent dirt intrusion. Use achieve the required cleanliness level of the oil and the correct installation method is also necessary conditions.

??Polymer materials having valuable hydraulic seal elastic, wide temperature range, in different media give less stress will have a greater deformation, this deformation can provide the contact pressure, compensating leakage gap, to seal the purpose. If the store is not good sealing effect will be affected.