Filter performance parameter：
Filtration precision：Is the ability to filter solid contaminants in addition to a certain size. It is to choose the filter is an important parameter to consider in the first place.
Nurgle capacit：Is the filter in the pressure drop e. before reaching can filter out the number of pollutants and accommodate. Filter of nurgle capacity is larger, longer service life. In general, the filter area, the greater the its nurgle capacity is larger.
Pressure of wor：Different structure forms of filters to allow working pressure, should be considered when selecting filter allows the maximum working pressure.
pressure loss：Working medium flowing through the filter, mainly due to filter to the medium flow resistance, make the oil filter produce certain pressure difference on both ends of the mouth, the pressure loss. The pressure loss in the system design should be taken into consideration, such as installing on pressure pipeline pressure drop, can lead to back pressure on the way back into the tubing.