lower cost, lower labor intensity and etc... Its proprietary components are maintenance free in its whole life (without dismantling and evidence by seals), it completely resolve the plight for all kinds of industrial oil pollution, and it gets rid of the embarrassment in decades of history such as: couldn't filtrate the oxydic impurities by using filter element (strainer) or
vacuum oil purifier (black oil in but black oil out), filtered oil couldn't be used, displaced the
filter element (strainer) or filter paper (fabric) frequently, the cleanliness of oil after filtered by old
oil purifier was same as the oil before filtration, high cost but low efficiency.