First layer (red): A sponge with PVC coating, strong resistance to corrosion. During the filtration, a wet zone can be formed. The main function is to smoothly drain the filtered condensate to the bottom of the filter.

        The second and sixth floors are stainless steel nets, which allow the filter to withstand large pressure drops under the premise of ensuring sufficient flow area.

        The third and fifth layers: non-woven fabrics, fixed filter media do not slide relative to each other and have the effect of intercepting coarse particles.

        The fourth layer: filter material, filter element made of imported special borosilicate fiber, with "Void", "hydrophobic" strong, stable quality and so on.

        The upper end of the filter element is covered with an “O” type seal ring, which provides a good seal when the filter element is connected to the housing. Upper and lower end caps are bonded together with epoxy and filter layers to ensure no side leakage. The lower end cap has an internal screw hole that can be tightly connected with the housing's screw.

        The working principle of high efficiency precision filter:

        Overall design: Preventing leakage inside the filter is a technical difficulty in filter manufacture. The filter element is glued together with an epoxy resin to attach the corrosion resistant upper and lower end caps to the filter layer. Prevent air leakage, while the upper and lower end caps are made of anti-corrosion materials. The lower cover has a fixed screw hole that allows easy and reliable connection to the filter housing. When the filter is filtered, the compressed air firstly enters the middle of the filter element and spreads to the surroundings. After being filtered, the filter core enters the gap between the filter element and the housing, and then passes through the filter outlet to discharge downstream. Solid suspended solids in the compressed air are trapped inside the filter element (fiber) and remain in the interior. Liquids (such as condensed water, oil mist, etc.) are trapped by the filter element (fiber) and flow to the lower part of the filter element due to the force of gravity, passing through the sponge. The "moisture zone" (at the "moisture zone" where there is no air flow due to a large pressure drop, it is called a "quiet zone") and flows to the bottom of the filter housing and is discharged from the automatic drain to the outside.

        The filter material has good hydrophobicity: The filter media of the filter element is made of specially processed borosilicate glass microfibers. Its anti-oil and water performance is higher than that of ordinary glass fiber. The same size filter element has a large dust holding space and a small pressure drop. . Anti-corrosion outer sponge: The oil and water that are filtered out of the filter need to be drained from the outer sponge. Since there are many types of air compressor lubricants (such as synthetic lubricants, mineral oil, etc.), the anti-corrosion ability of the outer sponge is also required to be strengthened, and the general sponge will be aged and hardened under the influence of the corrosion of the lubricant, thereby affecting Pollution discharge capacity, pressure drop will rise. The filter element uses a polyurethane coated foam surface with a PVC coating to ensure that it does not harden and age during a long period of oil soaking.

        High voidage: The porosity of the filter element is above 96%. The fiber diameter is small and the surface is smooth: if the fiber diameter is thick, it will not be able to produce a very small gap, so that the fine particles will not be effectively intercepted; if the fiber surface is not smooth, the filtered condensate cannot be fast Underground flow, which causes the pressure drop to rise. The equivalent diameter of the filter fiber is about 0.5 μm.
        Resistant to high pressure shock: During the use of the filter element, the pressure drop produced by it gradually increases. When the compressed air enters the filter, a large pressure difference occurs on both sides of the filter element, so the filter element is required to have sufficient strength. The filter element uses high-performance stainless steel inner and outer bushings to hold the fibers tightly together and withstand the impact of compressed air. The inner stainless steel bushing also serves to filter large particles.
        The anti-corrosion performance of the filter housing: The working environment of the compressed air filter is rather harsh, and its interior is corroded by oil and water under high pressure, so the filter housing needs to have extremely strong anti-corrosion performance. The screw-on housing (aluminum alloy) in the filter is treated with three anti-corrosion processes: a) anodization; b) dry epoxy powder coating; c) paint treatment. The tightly preserved shell can withstand the corrosion of oil and water in the compressed air and can guarantee a service life of ten years.

        The installation of compressed air high-efficiency filters on the air compressor system can greatly reduce the cost of renovation, and can effectively remove most of the air, dust, oil and gas and other pollutants in the air. Its filtration accuracy: primary particles ≤ 0.1μm, The oil separation efficiency is ≤0.1ppm, and the water removal rate is 99.9%. Secondary particles ≤ 0.01μm, oil separation efficiency ≤ 0.01ppm, water removal rate of 99.99%. The pressure dew point is -30°C and the water content is 0.45 g/m3. The pressure drop is ≤ 0.02Mpa. This ensures high-quality removal of moisture, solid particles, oil and other impurities in the compressed air, providing a strong guarantee for the safe and stable operation of the equipment.