What are the three commonly used hydraulic lip seals

Among the hydraulic cylinder seals, the commonly used DSH hydraulic seals include rotary seals, TC oil seals, piston seals, cylinder seals, O-ring, lip seals, and various combination seals. The commonly used form of hydraulic reciprocating sealing system is O ring. Hydraulic O ring has an O-shaped cross section and simple structure. The sealing material is generally rubber, which is often used for static sealing. However, the structural characteristics of O-rings are often used in the superimposed structure of step seals, glyd rings and PTFE seals, which can enhance the sealing performance.

What are the three commonly used hydraulic lip seals?

Hydraulic U-cup seals ring: The sealing performance of the U-shaped sealing ring is better, and it is generally suitable for the sealing of hydraulic cylinders with low working pressure or low operating speed. Because its separate seal is easy to move and roll, the friction resistance of the U-shaped seal increases with the increase of working pressure.

Hydraulic V-ring: The V-shaped sealing ring must be used with the supporting ring and the pressure ring. The sealing performance of the V-shaped sealing ring is better. The number of seals used can be determined according to the working pressure, and the sealing can be compensated by adjusting the pressure ring The shortcoming of the seal is that the structure is complex and the friction resistance is relatively large. Therefore, V-shaped seal products are only suitable for hydraulic cylinders with low moving speed and high working pressure.

Hydraulic YX-type ring: Yx-type sealing ring has a cross-sectional width to height ratio greater than 2, and based on the requirements for stability in use, the working lip of the Yx type seal is shorter than the non-working lip, so it is divided into Yx type for holes Yx type seals are used for seals and shafts. The seals will not roll when used, so this type of seal is suitable for high-pressure and high-speed hydraulic cylinders.