ydraulic O-ring improvement plan

??According to the load can be divided into static seal and dynamic seal; use can be divided according to the sealing hole seal, shaft seal and rotary shaft seal; its installation in the form of installation can be divided into radial and axial installation Radial installation. , the shaft seal, O-ring should make the hydraulic seal and the inner diameter of the deviation d2 between the diameter as small as possible;

??Hydraulic O-ring material hardness is the most important indicator of assessment sealing performance. Hydraulic O-ring hardness determines the amount of compression and the O-ring groove hydraulic maximum permissible extrusion gap. Because Shaw A80 nitrile seals can meet most of the conditions, so as to make the sealing material is not specified, generally provided Shore A80 nitrile rubber.

??The maximum permissible extrusion gap gmax and system pressure, hydraulic O-ring cross-section diameter and hardness of the material. Generally, the higher the operating pressure, the maximum allowable extruding space gmax smaller value. If the gap g exceeds the allowable range, it will lead to even out the hydraulic O-ring damage.

??To ensure the hydraulic seal hydraulic O-ring is not twisted can not be excessive hydraulic tensile O-ring; to make use of aids installation of hydraulic seals Hydraulic O-ring and ensure correct positioning; adhesive strips for sealing a hydraulic seal hydraulic O- ring can not be drawn at the connection.

??Angle is introduced according to drawings whether sharp edges chamfered or rounded; inner diameter of whether deburring surface for contamination; whether seals and components have smearing grease or lubricating fluid (to ensure media compatibility with elastomers, it is recommended to use the sealed liquid lubricated) ; not use grease containing solid additives such as molybdenum disulfide, zinc sulfide.