The oxidation deterioration of hydraulic oil filter element is a problem we often encounter in use. In order to use the product better, better maintenance is the most important.
1, ensure that the hydraulic oil is not used at high temperature; oil will oxidize and deteriorate quickly at high temperature.
2. Air filters on hydraulic stations should adopt filters that can filter both particles and water.
3. Hydraulic oil filter element uses precise filter element to filter hydraulic oil, so that the contamination of oil products can be maintained at NAS < 8 level for a long time. The filter element of equipment itself has poor general precision, which can not guarantee the cleanliness of hydraulic oil. Because the contamination limit of hydraulic station is only 5um, and the precision of filter element is often greater than this size, and the general liquid is prescribed scientifically. The pollution degree of pressure station should be controlled at NAS level less than 8, and the equipment with servo mechanism should be higher, less than 7. If you remove the servo valve, you will understand everything. Why the pollution degree of hydraulic oil should be controlled so high? It's better to buy a precision oil filter for on-line filtration. Now some of the hydraulic oil filter elements have reached 0.1um precision.