Misunderstanding 1: The filter with the bypass valve can not clean or replace the filter element after the filter element is blocked for a long time.
Many users will think that the bypass valve of the filter has the same function as the safety valve of the system: the bypass valve is opened after the filter element is blocked, and the full flow of the system oil passes, which has no effect on the system. This is a misunderstanding. When the bypass valve of the filter is opened, the pollutants (filtered particles that have been filtered out) blocked by the filter will re-enter the system through the bypass valve. At this time, the concentration of the local oil is the highest, and the hydraulic components are extremely Great damage, the previous pollution control will also lose its meaning. Unless the system requires very high continuity of operation, it is best to use a filter without a bypass valve. Even if a filter with a bypass valve is selected, when the filter is contaminated and the transmitter is sent to the transmitter, it is necessary to clean or replace the filter element in time. This is the way to ensure safe and reliable operation of the system.
Misunderstanding 2: judging the performance of the filter by the service life of the filter
Many users do not have the oil contamination detection equipment, and judge the performance of the filter by the service life of the filter. The fast or slow clogging of the filter indicates that its performance is good or bad, and both concepts are one-sided. Because the filter performance of the filter is mainly reflected by the performance index such as filtration ratio, dirt holding capacity, and original pressure loss, the longer the service life, the better, under the same working conditions and ensuring the cleanliness requirements of the hydraulic system.