Import anti-action principle ozone NBR star-ring: NBR star itself has elastic sealing ring is double-acting seal ability. The initial installation of the pre-compression produced a radial or axial contact stress and the system pressure is superimposed achieve sealing function. Superimposed sealing force increases the system pressure increases. Under pressure, the star has the same ring as the high surface tension of the fluid. You can even transfer the pressure on all sides. Wide star-ring applications, but is mainly used for dynamic seal, but its use limit pressure and speed by. Imported ozone star-ring seals for applications: for sealing reciprocating pistons, rods, plungers. For sealing oscillating, rotating or spiral motion of the shaft or spindle. Imported star-ring in static sealing applications: seals Radial stationary parts, such as sleeves, end caps, tube. Seal axially stationary parts, such as flanges, covers and so on. Operating parameters import NBR star-ring: dynamic sealing: reciprocation: ≤5Mpa no stalls circle: ≤30Mpa use stalls circle. Rotary motion: ≤5Mpa use stalls circle. Static sealing: ≤5MPa no stalls circle: ≤40Mpa use stalls circle. Working speed: reciprocation: ≤0.5m / s. Rotational motion: ≤2m / s. :( Temperature range depending on material and medium). Usually used: -30 ℃ ~ 110 ℃. Special materials: -30 ℃ ~ 200 ℃. Rotational movement: -30 ℃ ~ 80 ℃. Media: By selecting different material properties, which can be time sealing of all liquids, gases and chemicals. Imported NBR star-ring characteristics: Star-ring O-ring can completely replace the use of non-circular cross-section, avoid scrolling in reciprocation. Is the basis of the performance of the O-ring on the same system has been improved and enhanced, standard size entirely to American AS568 Standard O-rings. What is the import of ozone-resistant NBR star-ring? Star-ring is the most commonly used hydraulic cylinder seals, which is a typical lip seal, whether for piston or rod can get a good seal, U-rings at low pressure, alone lip seal interference deformation due to the contact area is small, the friction force is relatively low, as the pressure increases, the lip elastic deformation increases, tensile, compressive and bending stress increases, U-ring radial compressive force automatic increases, the length of contact with the sealing surface increased until the entire axial length of the U-ring seal in contact with the surface, in order to ensure a good seal under high pressure.