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Why should a bypass oil filter be installed in the hydraulic system?


SHENZHEN WONPRO TECHNOLOGY CO.,LTD. will tell you the answer.There are usually three types of oil filters commonly used in hydraulic systems: suction filters, pipeline filters and return oil filters. These three kinds of filters are installed in the oil circuit of the hydraulic system. They require low pressure loss and large flow to prevent clogging. Therefore, their filtration accuracy is generally above 10 microns, and can only filter out contaminated solid particles above 10 microns. Except for the pollution particles of 0.1~5 microns which are hugely harmful to the hydraulic system, it is also unable to filter out water and inhibit oxides. This type of filter is usually called a coarse filter. Its main function is to protect the oil pump from pollution particles above 10 microns, but cannot protect hydraulic components with high precision such as servo proportional valves. 80~90% of hydraulic system failures are caused by contamination of the hydraulic oil, such as oil pump wear, abnormal noise of the oil pump, abnormal opening and closing of the mold, the system is not pressurized or the pressure is unstable, the oil valve is jammed or stuck, and the oil temperature Excessive oil leakage and so on.
The bypass oil filter has a high filtration accuracy, which can effectively filter out pollutant particles of 0.1~5 microns that are hugely harmful to the hydraulic system, and can filter out moisture. Therefore, the bypass oil filter is an effective supplement to the oil circuit filter of the hydraulic system. The bypass oil filter has the function of gradual absorption of pollutants, a powerful function of adsorbing pollutants, and the function of absorbing and locking moisture. The biggest feature of the bypass oil filter is: remove micron-scale pollution particles, remove water and remove oxides and inhibit their production. The cleanliness level of the filtered oil is higher than that of new oil for a long time, and the cleanliness level of the oil is up to NAS5.