The PP folding filter element is formed by folding the inner and outer support layers of ultra-fine polypropylene fiber membrane and non-woven fabric or (wire mesh). The middle pin rod and end cover of the filter cartridge shell are processed and formed using hot melt welding technology, without adhesion, leakage, and secondary pollution. The PP filter element adopts a foldable type, with a large membrane filtration area, large pollutant capacity, low pressure difference, and long service life. The entire filter element is made of 100% pure PP material, with a wide range of chemical phase capacity.

PP folding filter element is a membrane folding filter element with a membrane as the core. After the filter membrane material is determined, it is made of polypropylene non-woven fabric (mesh), divided into a guide layer and a support body. Fold and insert the middle xin tube into the casing. All components are fused and sealed to form a complete integrated filter element free of chemical pollutants. The product has undergone a 100% integrity inspection. Endotoxin ≤ 0.25EV/ml meets the standards of the United States Pharmacopoeia (VSP).

The PP foldable filter structure has the advantages of large filtration area, low initial pressure difference, fast flow rate, small filtration volume, and low manufacturing cost. Due to the combination of pre filtration and final filtration, the filter element has a large capacity for holding pollutants. The usage time is longer than that of a single hole filter element. A single pure polypropylene material is easy to determine its chemical compatibility. However, in addition to the above advantages, PP foldable filter elements also have some drawbacks, such as low working pressure (generally not exceeding 0.3 Mpa, for example, when the pressure exceeds, the micropores will expand), easy penetration of solids, especially when the working temperature is above 60 ℃, and unsatisfactory backwashing effect.

PP folding filter element is a tubular filter element made of non-toxic and odorless polypropylene particles that are heated, melted, spun, stretched, received, and formed. If the raw material is mainly polypropylene. It can be called a PP melt blown filter element. It is not only widely used for water purification, but also has excellent chemical compatibility, suitable for filtering strong acids, bases, and organic solvents. Strong pollution capacity, long usage time, and low cost.