Advantages and Disadvantages of Mechanical Seal for Submersible Sewage Pump

Submersible sewage pump in the mechanical seal and soft fill seal What is the difference? Advantages and disadvantages of what it, the following by the manufacturers to come to Shanghai weihu and simple to say, I hope we can better understand the submersible pump.

    advantage:

    First, reliable sealing In the long-cycle operation, the sealing state is very stable, leakage is small, according to rough statistics, the leakage is generally only soft packing seal 1/100;

    Second, the long service life in oil, water media generally up to 1 to 2 years or longer, usually in the chemical medium can reach more than six months;

    Third, the friction power consumption Small mechanical seal friction power is only 10% to 50% of soft packing seal;

    Fourth, the shaft or sleeve is substantially free from wear;

    Fifth, the long-term maintenance cycle after wear and tear can be automatically compensated, under normal circumstances, without regular maintenance;

    Sixth, good anti-vibration of the rotating shaft vibration, yaw and axis of the seal cavity deflection is not sensitive;

    Seventh, the wide range of mechanical seals can be used for low temperature, high temperature, vacuum, high pressure, different speed, and a variety of corrosive media and media containing abrasive seal.

    Eight, for many of today's submersible sewage pump factory "zero leakage" needs, packing can not meet this requirement; simply adapt to a wide range of arbitrary, but for the factory, frequent replacement or maintenance will cause great losses to the factory .

    Disadvantages:

    First, the structure is more complex, high manufacturing and processing requirements;

    Second, the installation and replacement is too much trouble, and requires workers to have a certain level of installation technology;

    Third, the occurrence of accidental accident, the more difficult;

    Fourth, one-time investment is high.