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What is the sealing principle of the seal

by:Lepu Seal     2022-08-10

Seal is a device in electromechanical products to prevent oil leakage, air leakage, water leakage and the intrusion of external environmental media and dust. It is an indispensable part of modern fluid machinery and power machinery. There are many types of modern seals, and the application environment is quite different. The sealing principle of the seal is to achieve the sealing effect under the dual action of the axial compensation ability and the fluid pressure.

The most typical is the mechanical seal in the seal. The mechanical seal relies on a pair or several pairs of end faces that are perpendicular to the shaft for relative sliding. The fluid pressure and the elastic force of the compensation mechanism want to keep fit and cooperate with the auxiliary seal to prevent leakage.

Most of the seals are rubber products, and the sealing principle of rubber seals is similar to the above-mentioned mechanical sealing principle. A large deformation is generated, which can provide contact pressure, and the pressure promotes the flow of the fluid, and at the same time, it also compensates for the leakage gap and achieves the sealing effect.
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