If the mechanical seal fails, it should be further tested. Mechanical seal

If the mechanical seal fails, it should be further tested

In recent years, split seals have become another important additional feature in outer seals. The separate seal is a complete assembly, installed between the stuffing box and the bearing sleeve. With this design, it is not necessary to disassemble the liquid pump every time the seal needs to be replaced. This type of sealing combined with the exploration of other design criteria is slowly being developed. Because of the ease of mechanical seal replacement of this design, it is imperative to resist the temptation to simply replace the seal without further investigation into the root cause of the failure.

Average and non-average seals

The average of the mechanical seal has a great influence on the sealing pressure of the contact surface. This sealing pressure depends on the effective cross section of the seal itself and the pressure inside the stuffing box.

The section on the opposite side of the torsion surface of the non-uniform seal is completely exposed to the pressure limit of the stuffing box, which will cause a very high sealing pressure between the sealing surfaces, which will increase the working temperature and accelerate the wear rate. Under high temperature working conditions or when the liquid is highly corrosive and abrasive, the service life of the mechanical seal will be greatly reduced.