Main characteristics of multi-bag filters

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　　Key features of multi-bag filters: low pressure drop, high throughput, multiple repeated rinsings, long service life, excellent filtering precision, and low cost. They are particularly suitable for pre-filtering and clean filtration. 　　Polyethersulfone filter element: (PESU) Material: The medium used in polyethersulfone filter elements is a polyethersulfone membrane. It is a hydrophilic, sterile-grade folded filter element featuring a pore density of over 80% of the filter membrane’s surface area, as well as a unique pore geometry. It has a high flux, and its adsorption of proteins and microbial preparations is lower than that of nylon and acetate films. 　　Polytetrafluoroethylene filter element: (PTFE) Material: The medium of the PTFE filter element is a polytetrafluoroethylene membrane, which boasts excellent properties, wide chemical compatibility, biological safety, and the ability to control pyrogens; it also exhibits both hydrophobic and hydrophilic characteristics. 　　Hydrophobicity: Used for gas filtration; features high efficiency, sterility, high flow rate, resistance to high temperatures as well as strong acids and bases; wide chemical compatibility; suitable for use in fermentation tanks, with carbon dioxide, nitrogen, and compressed air. When used for gas filtration, it can achieve 100% retention of various phages, bacteria, and particles larger than 0.02 um. 　　Hydrophilicity: Used for liquid filtration to achieve sterility; it has broad chemical compatibility, is resistant to strong acids and bases, and exhibits high resistance to ozone.