In the process of using and managing the filter element of construction machinery, it will always cause a trouble to everyone, whether the filter element should be replaced or not. The quality of the filter is good or bad, in the end how to judge. According to many years of production experience, from the following situation to give you an analysis: when to change the filter element?

Many users will think that the bypass valve of the hydraulic oil filter and the safety valve of the system have the same function: the bypass valve opens after the hydraulic oil filter element is blocked, and the full flow of the system turbid liquid passes through, which has an impact on the system. This is a wrong understanding. When the bypass valve of the filter is opened, the precision filter element is quoted, and the pollutants blocked by the filter element will re-enter the system through the bypass valve. At this time, the pollution concentration of the local oil and the precision filter element will greatly damage the hydraulic components. The previous pollution control will also lose its meaning. Unless the system requires very high continuity of work, the filter element of construction machinery without bypass valve is selected. Even if the use of a filter with a bypass valve, precision filter installation services, when the pollution of the filter plug the transmitter, but also timely cleaning or replacement of the filter, this is to ensure the safe and reliable operation of the system. In fact, when the filter element is found to be blocked, it has already been explained that the filter element should be changed. Insisting on not replacing will cause certain damage to the equipment. If circumstances permit, it is recommended to replace it immediately.

How to judge the quality of construction machinery filter?

Because many users do not have oil pollution detection equipment and precision filter element processing, the service life of the filter is used to judge the performance of the filter. The filter clogging speed shows its performance is good or bad, precision filter, these two concepts are one-sided. Because the filtration performance of the filter is mainly reflected by the filtration ratio, dirt holding capacity, original pressure loss and other performance indicators, the precision filter element can only be used under the same working conditions and hydraulic system cleanliness requirements, the longer the service life, the better.

There are also users who think that the better the precision, the better the quality. Of course, this idea is also one-sided. The precision of the filter element is too fine. Of course, the filtering and blocking effect is better, but at the same time, the flow rate will not meet the requirements, and the filter element will be blocked quickly. Therefore, the precision of the filter element of the construction machinery is suitable for the work and the quality is good.