The self-cleaning filter back-flush filter is automatically removes particulate impurities on the inner surface of the filter element, in an effective way of mechanical scraping. The scraper is made of PTFE/ stainless steel, equipped with a high-precision spring, which can accurately expand and stretch. The spring is close to the surface of the filter element, and can efficiently remove impurities.
When the impurities accumulate to a certain extent, the automatic drain valve opens and the impurities are discharged from the bottom sewage outlet. The filter is suitable for high impurity content and continuous uninterrupted production conditions, for it 1) can realize continuous online filtration and 2) particulate impurities recovery, 3) generates no filter consumables, and 4) does not need frequent manual cleaning.