According to the material, the sealing ring 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 standard for sealing ring is ID inner diameter*CS wire diameter.

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

The oil will pollute the environment; it may also cause air to enter the oil suction chamber, affecting the working performance of the hydraulic pump and the smooth 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 for 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 the sealing performance can be automatically improved as the pressure increases.

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

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