The polypropylene pleated filter element is a core consumable in the field of industrial precision filtration. With its folded membrane structure, high-precision filtration performance and stable physical characteristics, it is widely used in industries such as pharmaceuticals, food and beverage, chemicals, and pure water production. Its excellent filtration effect is mainly based on the scientific physical structure design and standardized technical parameter configuration, featuring high flow rate, low pressure loss and high retention rate.
In terms of physical structure, the folding filter cartridge adopts a multi-layer composite folded three-dimensional structure, with a compact overall structure without dead corners. It is mainly composed of the filter membrane layer, the supporting protection layer, the central framework, the end cover and the sealing component. The core filter layer is mostly made of polypropylene, polyvinylidene fluoride, polytetrafluoroethylene and other microporous filter membranes, formed into radial waves through precise folding technology, significantly increasing the effective filtration area per unit volume. The effective filtration area of a 10-inch standard filter element can reach more than 0.6 square meters. Both the inner and outer sides of the filter membrane are equipped with non-woven fabric or wire mesh support protective layers, which can effectively enhance the overall structural strength of the pp pleated filter cartridge, prevent the filter membrane from deforming or breaking under high-pressure operation conditions, and ensure the stability and reliability of the filtration structure. The center of the filter element adopts a multi-hole hollow frame design, which can ensure the uniform and smooth flow of the fluid and reduce the filtration resistance. The end covers at both ends of the filter element are integrated with the filter membrane through a high-temperature hot-melt welding process, without any glue bonding throughout the process. This completely eliminates the problems of impurity precipitation and secondary pollution. The accompanying sealing gaskets are compatible with various complex working conditions. Common materials include silicone rubber, EPDM rubber, and fluorine rubber, which can fully ensure the tight sealing between the filter element and the equipment interface, and prevent liquid leakage.
Standardized technical parameters are the key to the stable operation of polypropylene pleated filter cartridge. Its filtration accuracy covers the entire range from 0.1 μm to 60 μm, with mainstream accuracies of 0.22 μm, 0.45 μm, 1 μm, and 5 μm. It can precisely intercept suspended matter, colloids, bacteria and tiny impurities in water, and the filtration accuracy is not affected by pressure fluctuations in the working conditions. The size specifications are highly standardized, with a standard outer diameter of 69 mm, an inner diameter of 28 mm, and lengths ranging from 10 inches, 20 inches, 30 inches, and 40 inches, suitable for various conventional filtration equipment.
In terms of performance parameters, the PP filter cartridge has a working pressure of ≤ 1.0 MPa, and the tolerance of temperature varies depending on the material between 60°C and 80°C. It has good acid and alkali resistance and corrosion resistance, and can be adapted to various filtration media such as water, organic solvents, and acid and alkali solutions. At the same time, the folded structure significantly reduces fluid resistance, achieving low pressure difference and high flow rate filtration, effectively extending the service life of the filter element.
In conclusion, the scientific physical structure and precise technical parameters of the pleated membrane filter cartridge complement each other, solving the shortcomings of small filtration area and high resistance of traditional filter elements, while ensuring the stability and safety of precise filtration, making it the preferred product for industrial precision purification filtration.