U-ring: U-ring sealing performance is better, but is easy to roll alone, U-ring friction and larger with increasing work pressure increases. So U-ring work only suitable for low pressure or low velocity using hydraulic cylinders. V-ring: V-ring must be compatible with the bearing ring and pressure ring seals imported price, good V-ring sealing performance can be used to determine the number of seals in accordance with the size of the working pressure, adjusted by the pressure ring can compensate for wear of the seal ring imported brand, V-ring disadvantage is the complex structure, the frictional resistance is large. Therefore, only the V-ring suitable for the lower and the higher speed of movement of the hydraulic cylinder using the working pressure. Seals of Grameen circle to circle grid: grid to circle is made with a rubber O-ring seals PTFE qualitative superposition of Use constitute the square, the circle can be divided into grid to grid to circle hole and shaft by grid to circle, but their sealing mechanism is the same imported seals, hydraulic cylinder seals imported models work, the pressure of the oil so that the elastic deformation of the O-ring seals extruded square, so close to sealing surface and together with the initial contact stress pressure to prevent leakage of oil. Imports of seal models, imported seals, seal manufacturers for 30 years provided by Yada Yada Industry and Trade Industry and Trade. If you have any questions about this information or consultation, please contact us now! Our Company Name: Tianjin Adar Ltd. (www.yada-mfj.com) Contact: Manager Ma, or click on "Business League call" direct dialogue with us!