Precise filters used in reverse osmosis in order to ensure the safety of water entering the membrane, the general precision is selected as 5 microns, if used behind the reverse osmosis or ultrafiltration membrane, then the filter accuracy is usually below 1 micron It is mainly to remove the impurities of the bacteria in the water after removing the ultraviolet sterilizer. The filter of the precision filter wired around the filter element, the folded filter element and the meltblown filter element. Because the meltblown filter element is cheap, the meltblown filter element is used most in the water treatment, and the filter element is plugged and replaced directly, and the cost is small.
The bag filter has a non-woven filter bag. The general accuracy is between 1 micron and 200 micron. The previous filter bag has no 1 micron precision. With the development of technology, there is now a 1 micron filter bag, but less than 1 micron. The accuracy of the bag is not available, bag filters are often used for large flow filtration, each bag can filter flow up to 40 tons/hour, the filter bag can be removed for cleaning and reuse, instead of replacing each time, it is also greatly Save on operating costs.
Bag filters have large flow, removable and washable characteristics, and precision filters have high precision characteristics, so the actual use is also based on water quality requirements.