Oil filter, generally refers to the filteration equipment for filtering hydraulic oil. It is generally composed of a filter and a filter element.

According to the material of the filter element, it can be divided into paper oil filter, chemical fiber oil filter, glass fiber oil filter, stainless steel oil filter and so on.

According to the structural form, it can be divided into a net type oil filter, a line gap type oil filter, a folded filter type oil filter, a sintered type oil filter, a magnetic oil filter, and so on。

According to the position where the oil filter is placed, it can also be divided into an suction oil filter, a pipeline oil filter and a return oil filter. Considering the self-priming performance of the pump, the oil suction filter is generally a coarse filter.

The main function of the oil filter equipment is to separate the oil from the oily sewage.
The separation principle includes gravity separation method, coalescence separation method, filtration method, and adsorption method.