What is the import of the star-ring, x-ring star-ring? Star-ring is the most commonly used hydraulic cylinder seals, imported star-ring, x-ring is a typical star-ring lip seal, regardless of the piston or rod can be used to obtain a good seal , U-ring under low pressure conditions, rely on lip seal interference deformation, due to the small contact area, the friction force is relatively low, as the pressure increases, the lip elastic deformation increases, tensile, compression and bending stress increases, U-ring radial pressing force automatically become larger, the length of the contact with the sealing surface continues to increase until the entire axial length of the U-ring in contact with the sealing surface, thus ensuring a good seal under high pressure. Action principle import x-ring-ring of stars: star-ring seal itself is a double-acting elastic sealing capabilities. From the initial pre-installation of compression produces a radial or axial contact stress and pressure overlay system to achieve sealing function. Superimposed sealing force increases as the system pressure increases. Under pressure, shaped ring having the same fluid as a high surface tension. You can even transfer the pressure on each side. Wide star-ring applications, but mainly for dynamic sealing, but its use limit pressure and speed by. Imported star-ring in dynamic sealing applications: for sealing reciprocating pistons, piston, piston. For sealing oscillating, rotating or helical motion of shaft or spindle. Imported star-ring in static sealing applications: Sealed radial stationary parts, such as sleeves, end caps, pipe. Seal axially stationary parts, such as flanges, covers and so on. Operating parameters import x-ring-ring star: dynamic sealing: reciprocating: ≤5Mpa no stalls circle: ≤30Mpa use stalls circle. Rotational motion: ≤5Mpa use stalls circle. Static seal: ≤5MPa no stalls circle: ≤40Mpa use stalls circle. Working speed: reciprocating: ≤0.5m / s. Rotational motion: ≤2m / s. Depending on the material and temperature range :( media). Usually used: -30 ℃ ~ 110 ℃. Special materials: -30 ℃ ~ 200 ℃. Rotational motion: -30 ℃ ~ 80 ℃. Media: By selecting different properties of the material, which can be sealed to the time all of the liquid, gas and chemicals. Imported star-ring features: star-ring O-ring can completely replace the use of non-circular cross-section, to avoid rolling back and forth motion. The same system has been improved in terms of performance on the basis of the O-ring and raise import star-ring, x-ring star-ring standard size entirely to American AS568 Standard O-rings.