Wound filter element: widely used, mostly disposable, made of rayon, etc., mechanical winding has strong adaptability and low price, deep filtration, large dust content, low precision.
Non-woven filter element: processed with porous film and reinforcing material, most filters on the market are this filter element combination. Filter elements of different materials are suitable for different environments, such as polytetrafluoroethylene filter elements are suitable for organic solvents, etc., and the operating temperature is -100 - 260℃; polyvinyl chloride filter elements are high in strength and the operating temperature should not be higher than 65℃. It can remove dust particles > 0.5μm, and the working pressure is 0.8 - 1.0MPa. When the gas passes through, the Compressed Air Line Filter element is electrostatically charged to prevent small particles from clogging, and it is easy to discharge and clean.
Hollow fiber combination filter element: densely distributed micropores, reduced maximum micropore number, the maximum micropore size of ordinary membrane Aluminum Air Filter is 0.3μm, and the hollow fiber is 0.1μm, with long service life and safe filtration. Made of 100% polypropylene, it has good water permeability and can be used as a gas drying component. However, the processing is complicated, and sudden changes in working conditions can easily cause the membrane to rupture and cause the filter element to fail. It is difficult to ensure the tightness and strength of the connection between the hollow fiber and the fixed flower plate, and it is constantly being improved.
Powder metallurgy porous filter material
Features: Porous metals or alloys are made by powder metallurgy technology, with filtering characteristics and metal properties. Excellent permeability and high filtration rate, such as the filtration rate of sponge titanium powder sintered material is 6 times that of ceramic filters; the pore size and porosity are controllable, and the filtration accuracy is high; the specific surface area is large, which can improve the heat exchange effect; it can absorb energy and can be used as a muffler and other materials; it maintains the characteristics of metals and alloys and can work under high pressure.
Application: The application is extensive and expanding. It can filter liquid and solid particles, separate media, such as filtering liquid fuels such as aircraft; separate gas and liquid, such as water and oil in compressed air; filter gas and dust, such as precision instrument gas purification.
Installation: Small-sized filter materials can be spliced into larger sizes, etc. The assembly methods include crimping and welding.
Various Coalescing Air Filter materials are used in different occasions. To select the ideal filter material, factors such as gas pressure should be considered comprehensively, and technical and economic comparisons should be made.