How to choose ultrafiltration membrane filter element for water purifier

At present, there are many types of ultrafiltration membrane water purifiers on the market with different filtration methods. In the process of use, the filter element needs to be replaced regularly, and how to choose the ultrafiltration membrane filter element has also become a difficult problem for everyone. Ultrafiltration membrane filter element selection First of all, you need to know the replacement cycle of filter element replacement. The ultrafiltration membrane cartridge is a consumable item. However, the longer the ultrafiltration membrane filter element is used, the better, because the change of the water quality of the effluent cannot be observed with the naked eye, and the service life will have a great relationship with the water quality and water pressure of the raw water. When the water volume of the effluent drops significantly, it indicates that the filter element is seriously blocked, and the filter element needs to be replaced when the time is not enough. Secondly, everyone needs to understand that there are three types of ultrafiltration membrane water purifiers commonly used in the market: multi-stage filtration water purifiers, central water purifiers, and stainless steel water purifiers. The ultrafiltration membrane filter element in the multi-stage filtration water purifier generally adopts external pressure filtration, such as shortcut filter element, easy-insertion filter element, lock-tooth filter element and so on. And which filter element is needed for the water purifier used, you can compare the appearance and size of the product sample, and then confirm the filter element you need. Finally, it is necessary to carefully understand the quality of the filter element, which must be observed from the material, shell, appearance and other aspects of the product. 1. The filter element membrane wire material, generally household PAN polypropylene cyanide and alloy PVC polyvinyl chloride are better, hydrophilic material, not easy to block, and the material itself does not cause any harm to the human body. 2. The material of the filter element shell, the water filtered by the filter element of the water purifier is directly consumed or used, and the water quality of the effluent is relatively high. Therefore, the shell material requirements of the filter element are also relatively high, and food-grade materials are used, such as food-grade ABS, UPVC and other materials. 3. The quality of the membrane filament, whether the pore diameter of the membrane filament is uniform, whether the wall thickness is uniform, whether there is eccentricity, etc., the outer diameter of the hollow fiber ultrafiltration membrane: 0.5-2.0mm, the inner diameter: 0.3-1.4mm. 4. The filtration precision of the membrane wire will directly determine the quality of the effluent. The filtration precision of the filter element of the household ultrafiltration membrane water purifier is 10nm. 5. On the end face, whether the membrane filament is fully filled, and whether the position is evenly distributed and centered. The fullness of the membrane filaments can ensure the water volume of the effluent; the distribution of the membrane filaments is evenly centered, so that the force of the membrane filaments is uniform, and it is not easy to cause the membrane filaments to break, ensuring the service life of the filter element. 6. Is there a lot of membrane wire plugging holes on the end face, too many plugging holes at both ends will affect the water output, and too many plugging holes at one end will form blind holes, which will affect the water output or flushing effect. According to the specific situation, choose a suitable ultrafiltration membrane filter element to make the filtered water clearer and with high precision.
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