Selection of Axial Flow Pump Filling Material

Axial flow pump in the use of the process often encounter a lot of details of the problem, the professional production of axial flow pump manufacturers in Shanghai to this axial pump users a solution. What are the requirements of the axial flow pump for the packing material?
    When the axial flow pump packing by axial compression can produce a large radial compression force to get the seal; when the machine and the shaft vibration or eccentric and filler wear can have a certain degree of compensation (followability). With the continuous emergence of new materials, filler structure has also greatly changed the form, no doubt it will promote the application of filler seal more widely used as filler material should have the following characteristics.
    There is a certain elasticity. When the axial flow pump packing by axial compression can produce a large radial compression force to get the seal; when the machine and the shaft vibration or eccentric and filler wear can have a certain degree of compensation (followability). Have a certain strength. So that the pump packing will not be damaged before the wear.
    High chemical stability. That is, with the sealing fluid and lubricant adaptability is better, not by the fluid medium corrosion and swelling, but also does not pollute the media. Not well permeable Because the fluid medium has a certain infiltration of many of the fiber body, so the filler structure of the high density requirements, so the filler often need to be impregnated, filled with the corresponding filler and lubricant.
    Good thermal conductivity. Easy to heat quickly, and when the friction after the heat can withstand a certain high temperature. Good self-lubricating. That is, low friction coefficient wear. Packing manufacturing process is simple, easy assembly and disassembly, low prices.
    At the same time to meet the requirements of the material less, such as some soft metal filler, carbon fiber filler, flexible graphite packing, etc., their performance is good, to adapt to a wide range, but the price is more expensive. And some natural fiber filler, such as hemp, cotton, wool, etc., the price is not high, but slightly worse performance, narrow range of adaptation.
    Therefore, in the selection of pump material should be used when the requirements of a comprehensive, comprehensive consideration.