The oil filter has four kinds of coarse filter, ordinary filter, precision filter and special fine filter according to the filtering precision (the particle size of the impurity to be filtered out), and they can filter out more than 100 μm, 10 to 100 μm, 5 respectively. Impurities of ~10 μm and 1-5 μm in size.
When choosing an oil filter, consider the following:
(1) The filtering accuracy should meet the predetermined requirements.
(2) It can maintain sufficient flow capacity for a long time.
(3) The filter core has sufficient strength and is not damaged by the action of hydraulic pressure.
(4) The filter core has good corrosion resistance and can work continuously at the specified temperature.
(5) The filter is easy to clean or replace.
Therefore, the oil filter should be selected according to the technical requirements of the hydraulic system, according to the filtration accuracy, flow capacity, working pressure, oil viscosity, working temperature and other conditions.
