The oil filter element is mainly used to filter the oil in the hydraulic system and is installed in the filter and oil filter in the hydraulic system.
According to the installation position of the hydraulic oil filter element in the hydraulic system, the hydraulic oil filter element is divided into oil suction line filter element, pressure oil line filter element and return oil line filter element.
Hydraulic oil filter element in the oil suction line: In order to protect the hydraulic pump, it is necessary to install the oil suction filter element in the oil suction line (oil tank-hydraulic pump inlet) or directly in the oil tank. Varies. Excessive flow resistance causes hydraulic pump cavitation.
Pressure pipeline hydraulic oil filter element: The pressure pipeline hydraulic oil filter element is not only to protect its downstream components, but also the main oil filter for the degree of oil pollution in the system. Through its own effective purification of oil, it also plays a good role in protecting the hydraulic pump. effect. If the filtration accuracy is 5-10μm, the filter is subjected to great pressure and vibration. According to different pressure levels, the allowable pressure difference of the pressure pipeline oil filter element is within the range of 0.3. For the pressure pipeline oil filter of the ground equipment, the allowable pressure The difference is 0.7 MPa. Considering the cost and installation space, the bigger the bigger.
Since there is no unified classification method for filters, they can be classified and summarized from the characteristics of various filters. In addition to classification according to the installation location and filtration accuracy, it is also often classified according to the connection form of the filter, the pressure rating of the filter, the number of cylinders of the filter, etc.
According to the connection form, the filter can be divided into a pipe connection filter and a plate connection filter. Tubular filters are connected together by opposing pipes and connected by flanges, metric threads or tubular threads. Plate filter refers to, on the same plane, fixed with bolts.
Another distribution is that according to the number of cylinders, a single shell and a single filter element is called a single cylinder filter, which has two cylinders and two shells; the filter element is called a double cylinder filter, which can be replaced when the equipment is running continuously.
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