Mechanical seal for kettle Manufacturer's wear amount and service life

1、 For the service life of mechanical seals, the main wear part is the end face of the seal friction pair, because the wear amount of the seal end face is not large under normal working conditions, such as the graphite friction pair with a balance coefficient of 0.75, the wear amount per hour in water and oil is about 0.1 μ m, that is, the wear amount is about 1 mm after 10000 hours of continuous operation, It can be seen that the wear amount of friction pair generally does not affect the service life of mechanical seal. Mechanical seals can generally be used continuously for 1~2 years, and it is no problem that they can also be used for 5~10 years in some cases. The above service life premise is that the mechanical seal operates under the allowable working conditions, such as shaft movement, runout, medium particle concentration, temperature, corrosivity and other factors.

External factors affecting mechanical seal life:

1. Large displacement of pump shaft

2. The axial force is too large

3. The pump shaft has large deflection

4. The auxiliary flushing system is unreasonable