Rubber seals are the most important and effective means to solve the problem of hydraulic system leakage. If the seals of the hydraulic system are not good, the seals may leak unacceptably, and the leaked 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 smoothness of the hydraulic actuator movement. Therefore, the reasonable selection and design of the seal device is very important in the design of the hydraulic system. The requirements for the seal device are as follows:

1. The seal should have good sealing performance within the working pressure and a certain temperature range, and can automatically improve the sealing performance as the pressure increases.

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

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

4. Simple structure, convenient use and maintenance, so that the seal has a longer life.

Precautions for rubber seal installation:

1. Clean the installation location.

2. Remove the burrs during the installation movement of the seal.

3. Apply lubricant on the seal.

4. Protect the sealing surface from damage.

5. Check to confirm that the size of the seal is correct.

6. Use corresponding tools to install the seals that need to be deformed.