Sealing method

1. Minimize the number of sealed areas as much as possible

2. Blockage and isolation

3. Introduction or injection

4. Increase the leakage resistance of mechanical seals

5. Add working elements in the channel

6. Multiple sealing methods combined

Common sealing forms

Gasket sealing, packing sealing, mechanical sealing, non-contact sealing, and injection type pressure sealing are common sealing forms. Among them, packing seal should be considered the most common, which also includes mechanical seals such as soft packing seal, hard packing seal, and molded packing seal. Shaped packing seals include commonly used O-rings, Y-rings, oil seals, and so on. Non contact seals include gap seals, labyrinth seals, floating seals, power seals, magnetic fluid seals, and fully enclosed seals.