Sealing ring according to the material can be divided into nitrile rubber sealing ring, natural rubber sealing ring, neoprene rubber sealing ring, EPDM rubber sealing ring, hydrogenated nitrile rubber sealing ring, silicone sealing ring, fluorine rubber sealing ring, silicon fluorine rubber sealing ring. The sealing ring standard is ID inner diameter * CS wire diameter.

Sealing ring device requirements, sealing ring is an important and effective means to solve the problem of hydraulic system leakage. If the sealing ring of the hydraulic system is not good, the sealing ring may have unacceptable external leakage.

The oil will pollute the environment; it may also cause air to enter the oil suction cavity, affecting the working performance of the hydraulic pump and the smoothness of the movement of the hydraulic actuator. Therefore, the reasonable selection and design of the sealing ring device is very important in the design of the hydraulic system, the requirements of the sealing ring device are as follows:

1. The sealing ring should have good sealing performance within the working pressure and a certain temperature range, and can automatically improve the sealing performance with the increase of pressure.

2. The friction between the sealing ring device and the moving parts should be small, and the friction coefficient should be stable.

3. The sealing ring has strong corrosion resistance, is not easy to age, has long working life, good wear resistance, and can automatically compensate after wear to a certain extent.