Difference between depth filtering and select filtering

　　Profession import grease filter supplier said when the filter medium has a very big thickness or there are little of solid grain impurities exist in the suspension liquid, and the size for solid grain impurities is smaller than the filter medium hole canal, the best filtering type is depth filtering. During the filtering process, all solid grain impurities would been sucked and absorbed in the hole canal inner space, and use this working principle, import grease filter supplier had produce the plastic pipeline filter products and sand filter products.

　　When the size of the solid grain impurities, which had been hold back on the filtering medium is bigger than the filter medium hole gap, profession import grease filter supplier suggests people to choose the select filtering process, to ensure there are no sold grain impurity had been sucked into the inner space of filter medium, for example, import grease filter supplier suggests people to use the drum type filter to clean out all of the coarse grain impurities among the dirty water.