How to choose a cutting fluid filter bag:
       1. Selection of filter materials
   In addition, different industries have different requirements for selecting liquid filter bags. For example, pharmaceutical, food and other industries must use FDA-approved materials. Pure water must choose filter materials that are pure and do not contain released materials that will affect the specific impedance.
       2. Selection of filtering precision
       Filtering precision refers to the ability to filter out 100% of the particles with the indicated precision. It is worth noting that the nominal accuracy does not have "a standard recognized and followed by the industry." That is to say, company A's 25 micron filtration precision may be equal to company B's 5 micron, or finer. Strictly speaking, the commonly known absolute filtration products on the market, such as membrane filter elements, can only be called "close to absolute". If an impurity removal efficiency of more than 98% can be achieved, it can be called absolute filtration accuracy. Relative precision refers to the ability to filter out 60-80% of the particles with the indicated precision. In this regard, most of the time, experienced professional filtration product suppliers will assist customers in making suitable liquid filter bags, but the fundamental solution still requires "trial", so as to ensure that the purchased liquid filter bags can truly intercept unnecessary impurities.
       3. Filtration system design
       In addition, the flow requirements and pressure requirements of the entire filtration system need to be considered when selecting a liquid filter bag. For example, which pressure source should be selected, how much pressure is required to fully utilize the filter element life, whether two sets of filters need to be installed in parallel to suit a system for continuous operation, how to match coarse filtration and fine filtration in situations with wide particle size distribution, whether a check valve or other devices need to be installed in the system, etc. These require the user to further cooperate closely with liquid filter bag and liquid filter suppliers to find the appropriate design.