According to the installation position of the hydraulic oil filter in the hydraulic system, the hydraulic oil filter is divided into suction pipeline filter, pressure pipeline filter, and return pipeline filter.

 

Hydraulic oil filter element in the oil suction pipeline: To protect the hydraulic pump, it is necessary to install the oil suction filter element in the oil suction pipeline (oil tank hydraulic pump inlet) or directly in the oil tank, with an accuracy of generally 100180 μ m, depending on the pump's self suction capacity. Excessive flow resistance leads to cavitation of the hydraulic pump.

 

Hydraulic oil filter element for pressure pipelines: The hydraulic oil filter element for pressure pipelines not only protects downstream components, but also serves as the main oil filter for the degree of oil pollution in the system. Through its effective purification of the oil, it also plays a good protective role for hydraulic pumps. If the filtration accuracy is 5-10 μ m, the filter is subjected to significant pressure and vibration. Depending on the pressure level, the allowable pressure difference of the pressure pipeline oil filter element is within the range of 0.3. For pressure pipeline oil filtration of ground equipment, the allowable pressure difference is 0.7 megapascals. Consider cost and installation space, the larger the larger.

 

Due to the lack of a unified classification method for filters, they can be classified and summarized based on the characteristics of various filters. In addition to classification based on installation location and filtration accuracy, it is also often classified based on the connection form of the filter, the pressure level of the filter, and the number of filter cylinders.

 

According to the connection form, filters can be divided into tube type connection filters and plate type connection filters. A tubular filter refers to a device that is connected together through opposite pipes and is connected through flanges, metric threads, or tubular threads. Plate filter refers to being fixed with bolts on the same plane.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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