Type characteristics of oil filter

Type characteristics of oil filter

1.Net filter

The net type oil filter has a filter mesh made of copper mesh or stainless steel mesh, and is surrounded by a plastic or metal cylindrical frame with a lot of holes around it, and is coated with one or two layers of copper mesh, and the filtering precision depends on copper. The number of mesh layers and the size of the mesh. The oil filter has the advantages of simple structure, large flow capacity, convenient cleaning, but low filtration precision, and is generally used for the oil suction port of the hydraulic pump.

2. Line gap type oil filter

The line gap type oil filter is formed by tightly winding a steel wire or an aluminum wire around the cylindrical frame to form a filter element, and the small gap between the copper wires is used to filter out impurities mixed in the liquid. The utility model has the advantages of simple structure, large flow capacity, high filtration precision than the net type oil filter, but is not easy to clean, and is mostly a return oil filter.

3. Paper oil filter

The paper oil filter has a paper core made of plain or corrugated phenolic resin or wood pulp microporous filter paper, and the paper core is wrapped around a skeleton made of perforated tinplate to increase the strength. In order to increase the filtration area, the paper core is generally formed into a folded shape. The filter has high precision and is generally used for fine filtration of oil, but it cannot be cleaned after clogging, and the filter element must be replaced frequently.

4. Sintered oil filter

In the sintered oil filter, the filter element is sintered by metal powder, and the micropores between the particles are used to block the passage of impurities in the oil. The filter element can withstand high pressure, good corrosion resistance and high filtration precision, and is suitable for high pressure and high temperature hydraulic systems requiring fine filtration.