Function of oil filter

In the working fluid of the hydraulic system, due to the dust in the air, the wear of hydraulic components and the oxidation and deterioration of the liquid itself, there will inevitably be various pollutants, which is an important reason for the failure of the hydraulic system. Hydraulic components and their impact on service life. The function of oil filter is to filter impurities, purify liquid and control the pollution degree within the allowable range. It is an effective device to remove solid impurities in working fluid.

Working principle of oil filter: use the working fluid to flow through the filter element with countless tiny gaps or holes (such as mesh type, wire gap type, paper core type, etc.) to filter out solid impurities.

Main performance parameters of oil filter

1. Filtration accuracy
Filtration accuracy refers to the size of fine impurity particles that can be filtered by the oil filter. Different hydraulic components or different system conditions have different requirements for filtration accuracy.

2. Pressure difference
Pressure difference refers to the difference between the inlet and outlet pressure of the oil filter when it passes through a certain flow of liquid. It is related to the flow rate, viscosity and pollution degree of the liquid.

3. Filtration capacity
Filtration capacity refers to the maximum flow allowed by the oil filter under the specified differential pressure. The requirements of filtration capacity should be considered in combination with the installation position of oil filter in the system.

4. Rated pressure
The rated pressure refers to the maximum allowable pressure when the oil filter works normally. It is related to the structure and material strength of the oil filter.