The installation of the oil filter

(1) (oil filter)The oil suction strainer at the pump inlet is used to protect the pump from absorbing large mechanical impurities. According to the requirements of the pump, coarse or ordinary precision oil filters can be used. In order not to affect the oil suction performance of the pump and prevent cavitation, the filtering capacity of the oil filter shall be more than twice the pump flow, and the pressure loss shall not exceed 0.01 ~ 0.035MPa.

(2) The high-pressure oil filter on the oil circuit at the pump outlet is mainly used to filter the polluted impurities entering the hydraulic system. Generally, the oil filter with filtering accuracy of 10 ~ 15mm is used. It shall be able to bear the working pressure and impact pressure on the oil circuit, and its pressure drop shall be less than 0.35Mpa. It shall be equipped with safety valve or blocking status sending device to prevent pump overload and filter element damage.

(3) The low-pressure oil filter on the oil return circuit of the system can filter the pollutants before the oil flows into the oil tank and provide clean oil for the hydraulic pump. Due to the low pressure of the oil return circuit, the fine oil filter with low filter element strength can be used, and the oil filter is allowed to have a large pressure drop.

(4) (oil filter）For the bypass filtration system installed outside the system, the large hydraulic system can be specially equipped with an oil filtration subsystem composed of hydraulic pump and oil filter to filter the impurities in the oil to protect the main system. When installing the oil filter, it should be noted that generally, the oil filter can only be used in one direction, that is, the inlet and outlet are not interchangeable.