Advantages And Disadvantages Of Pump Mechanical Seal

  The pump mechanical seal does not leak, but it does not affect its normal use, and its leakage is very small, which meets the national standard. Therefore, it has been widely used in all walks of life.

  In daily use, what are the advantages of mechanical seal for pump:

1、   The mechanical seal for pump has relatively fine workmanship and reliable structure, and the leakage can be limited to a small amount. As long as the surface roughness and straightness of the main sealing surface can meet the requirements, and as long as the material has good wear resistance, the mechanical seal can achieve little leakage, or even no leakage can be seen with the naked eye. According to the different working conditions of mechanical seals, there are corrosion-resistant mechanical seals, high-temperature mechanical seals, low-temperature mechanical seals, high-pressure mechanical seals and so on.

2、   Mechanical seal for pump have a long service life. In the mechanical seal, the main wear part is the end face of the seal friction pair. The wear amount of the seal end face is small under normal working conditions. It can generally be used continuously for 1 ~ 2 years, and it can also be used for 5 ~ 10 years in special occasions.

3、   Wide range of application. When the medium is flammable, explosive, toxic and harmful, the pump mechanical seal can ensure the seal. It is also suitable for equipment sealing of high temperature, low temperature, high pressure, vacuum, various rotating speeds and corrosive media.

Of course, there are many advantages of pump mechanical seal. I won't list them in detail here. However, mechanical seals also have obvious disadvantages. The structure is complex, especially the container mechanical seal, which is inconvenient for disassembly and assembly. The high requirements for its manufacturing and processing technology are still higher.