The selection of sealing ring material is of great significance for its sealing performance and service life, and the performance of the material directly affects the performance of the sealing ring. So, what are the common reasons for seal ring damage?

 

 

 

1. Hardening (aging)

One of the reasons for the leakage of the sealing ring is that the material itself is hardened by temperature. When the hardness is too high, the sealing ring cannot fill the gap between the fitting parts, resulting in leakage.

2. Wear and tear

The wear of sealing rings involves the surface smoothness, movement speed, and transmission medium of the mating parts, and different sealing materials adapt to different movement speeds.

3. Extrusion

When the seal is subjected to excessive pressure, it will be squeezed out into the metal gap, damaging the sealing ring and causing leakage. This situation involves the hardness of the seal itself and whether the metal gap is too large. If not handled properly in design, selection, processing or installation, extrusion damage can occur.

4. Corrosion

The situation manifested is that the sealing element softens or even dissolves, due to the invasion of media and errors in material selection. Special attention should be paid if the media contains water or solvents.