Correction of Misconceptions during Maintenance of Mechanical Seals for Pumps

1. The new one is better than the old one. Relatively speaking, the effect of using a new mechanical seal is better than the old one, but if the quality or material selection of the new mechanical seal is not appropriate and there is a larger dimensional error, it will affect the sealing effect. In polymeric and permeable media, it is better not to replace the static ring if there is no excessive wear. Because the stationary ring remains in a stationary state for a long time in the stationary ring seat, the polymer and impurities deposit together, providing a good sealing effect.