The maintenance and servicing methods for filters are as follows:
1. The core part of a filter is the filter element. The filter element consists of the filter frame and a stainless steel wire mesh. The stainless steel wire mesh is a wear-prone part and requires special protection;
2. After a filter has been in operation for some time, a certain amount of impurities accumulate inside the filter element. The pressure drop then increases and the flow rate decreases, so the impurities inside the filter element must be removed promptly;
3. When cleaning off impurities, take particular care that the stainless steel wire mesh on the filter element is not deformed or damaged; otherwise, once the filter is reinstalled, the purity of the filtered medium will not meet the design requirements, and equipment such as compressors, pumps and instruments will be damaged;
4. If the stainless steel wire mesh is found to be deformed or damaged, it must be replaced immediately.
● Precision filters
1. The core part of a precision filter is the filter element. The filter element is made of special materials and is a wear-prone part requiring special protection;
2. After a precision filter has been in operation for some time, the filter element has intercepted a certain amount of impurities. The pressure drop then increases and the flow rate decreases, so the impurities in the filter must be removed promptly, and the filter element must be cleaned at the same time;
3. When removing impurities, take particular care with precision filter elements: they must not be deformed or damaged; otherwise, once the filter element is reinstalled, the purity of the filtered medium will not meet the design requirements;
4. Some precision filter elements cannot be reused repeatedly, such as bag-type filter elements and polypropylene filter elements;
5. If a filter element is found to be deformed or damaged, it must be replaced immediately.

