What are static seals and dynamic seals?
In O type rings, the main performance is that their compression ratio can not be the same, and the groove size design can not be the same, in the case of pressure, the dynamic seal need to increase the hardness, or even use the retaining ring. According to the use of the situation, the dynamic sealing requirements of the O ring strict workmanship. In terms of material, it is only determined by working conditions.
For example, the hydraulic cylinder seals in the cylinder and the cylinder to seal, but the wall in the back and forth movement, which is the dynamic seal
A static seal means that the seal is relatively stationary with its sealed chamber and that the dynamic seal is relatively moving
