How to choose a liquid filter bag
First need to understand the filtration mechanism of bag filter system: liquid flowing from filter bag bag, filter out particles trapped inside the bag, bag filter works by pressure filtration. The bag filtration system consists of three main parts: filter containers, support nets and filter bags. Filter bag material: First according to the chemical name to filter the fluid, according to the filter material of chemistry with taboo to find available, then aiming at the filter medium temperature, operating pressure, ph, viscosity (CPS), types of impurities such as (hard particles, soft particles), impurity content (PPM), operating conditions (such as whether to need to tolerate steam, hot water or chemical sterilization, etc.), assessed, and shall not apply to the filter material. Use is also an important consideration, such as pharmaceutical, food or cosmetic ingredients that must be approved by the FDA; Ultra-pure water should be chosen for pure and not contain the filter material that will affect the impedance. Filter gases should be selected for hydrophobic materials and whether "health grade filtering" design is required.
1, first of all, according to the chemical name to filter the fluid, according to the chemical with taboo to find available filter material, commonly used in PE, PP, PTFE, NMO, again according to its operating temperature, operating pressure, ph, operating conditions (such as whether to need to tolerate steam, hot water or chemical sterilization, etc.), assessed and eliminate shall not apply to the filter material. Use is also an important consideration, such as pharmaceutical, food or cosmetic ingredients that must be approved by the FDA; Ultra-pure water should be chosen for pure and not contain the filter material that will affect the impedance. Filter gases should be selected for hydrophobic materials and whether "health grade filtering" design is required. The main foreign Filter bags are GAF, FSI, 3M, CUNO, U.S. Filter, LOEFFLER, PARK, Vablue Filter bag etc
Filter bag precision options: This is the most troubling question. For example, to remove visible particles, use a 20 or 25 micron filter bag. To remove the cloud from the liquid, use a 1 or 5 micron filter bag. To filter out the smallest bacteria, you need a 0.2 micron filter bag. The problem is that there are two types of filter units: absolute accuracy/nominal accuracy.
