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The polypropylene (PP) pleated filter cartridge is a high-precision depth filtration cartridge designed with advanced filtration technology. It utilizes ultra-fine polypropylene fiber filter media as the core filtration material, combined with non-woven fabric or mesh inner and outer support layers, and formed through a pleating process. The filter housing, center core, and end caps are manufactured as an integrated structure using fully automatic thermal welding technology. No glue or adhesives are added throughout the entire production process, effectively eliminating the risks of adhesive leaching, media leakage, and secondary contamination, ensuring high cleanliness, safe operation, and reliable performance.
Description
Product Advantages
The entire filter cartridge is made of 100% polypropylene (PP) material, providing excellent chemical compatibility and meeting FDA-related requirements for filtration materials.
The all-PP construction offers broad chemical resistance and can withstand a wide range of acidic and alkaline liquids, with compatibility across a pH range of 1–14.
The optimized pleated membrane structure increases effective filtration area, ensuring high throughput while maintaining low operating pressure loss, helping extend filter service life.
Available filtration ratings from 0.1 μm to 50 μm, providing flexible solutions for different applications, from coarse particle removal to precision filtration.
The filter cartridge is manufactured using advanced thermal welding technology without glue or adhesives, ensuring a strong structure, clean filtration performance, and no risk of foreign substance release.
The filter cartridge can be cleaned using conventional physical or chemical cleaning methods depending on the type of contaminants, helping reduce operating costs.
Suitable for high-cleanliness applications, PP filter cartridges can be sterilized using autoclave sterilization and online steam sterilization methods.
Structural Diagram
The O-type sealing design provides reliable sealing performance, effectively preventing leakage and ensuring secure operation under various working conditions.
The interface interface is designed for easy integration with different filtration systems, ensuring convenient installation and compatibility.
The thermal welded construction creates a strong and stable filter structure without the use of adhesives, reducing the risk of contamination and improving reliability.
The optimized pleated structure increases the effective filtration area, enhances dirt-holding capacity, and extends the service life of the filter cartridge.
The multi-layer filtration media combined with support layers provides efficient depth filtration while maintaining structural strength and filtration stability.
The reinforced center core provides internal support, maintains cartridge rigidity, and ensures stable performance during operation.
The sealed end cap design prevents bypass flow, improves sealing performance, and ensures consistent filtration efficiency.
The protective outer shell strengthens the overall structure, protects internal filtration components, and improves mechanical durability.
The upstream support layer protects the filter media from damage caused by pressure fluctuations and ensures reliable filtration performance.
The high-efficiency filtration media provides precise particle retention and effectively removes contaminants from liquids.
The downstream support layer maintains filtration stability, prevents media deformation, and ensures consistent output quality.
The integrated fin handle design allows quick installation and removal, making filter replacement easier and more convenient.
Technical Specifications
| Filtration Rating | 0.1, 0.22, 0.45, 1, 3, 5, 10, 20, 50 μm |
| Filter Media | Ultrafine Polypropylene Membrane |
| Support Layer | PP Non-woven Fabric / PP Mesh |
| Cartridge Length | 5″, 10″, 20″, 30″, 40″ |
| Outer Diameter | Φ69 mm |
| Inner Diameter | Φ28 mm |
| End Connection Types | 215, 222, 226, M30, M36 |
| Seal Materials | Silicone Rubber, Nitrile Rubber (NBR), EPDM, Fluoro Rubber (FKM) |
| Sealing Method | Thermal Welding |
| Maximum Operating Temperature | 80℃ |
| Maximum Temperature Resistance | 140℃ |
Pure Water Flow Rate Reference Table
Initial Flow Rate of 10″ Filter Cartridge (L/min, ΔP = 0.01 MPa, water viscosity: 1 centipoise, 25℃)
| Filtration Rating (μm) | 0.1 | 0.2 | 0.45 | 0.65 | 1 | 2 | 3 | 5 | 10 | 20 | 30 | 60 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flow Rate (L/min) | 5 | 15 | 40 | 55 | 60 | 65 | 65 | 67 | 70 | 75 | 78 | 80 |
Product Applications
With its reliable performance and wide chemical compatibility, the PP Pleated Filter Cartridge is an ideal choice for industrial precision filtration and fluid pre-filtration applications. It is widely used in various industries requiring standardized filtration solutions, including water treatment, chemical processing, pharmaceutical, food and beverage, electronics, and other demanding filtration applications.
Pre-filtration and fine filtration of pharmaceutical liquids, biological products, cell culture fluids, blood products, water for injection (WFI), and sterile reagents, meeting the requirements of sterile production and GMP environments.
Filtration and clarification purification of impurities from various organic solvents, acidic and alkaline solutions, inks, coatings, chemical additives, and emulsions.
Front-end pre-filtration for reverse osmosis (RO) purified water systems, deionized water systems, and ultrapure water equipment, removing sediment, colloids, and particulate contaminants while protecting downstream precision membrane components.
Purification and filtration of drinking water, mineral water, beer, fruit juice, tea beverages, dairy products, seasonings, and other food ingredients to ensure product cleanliness and safety.
Precision filtration for dust and contaminant removal from industrial gases such as compressed air, nitrogen, carbon dioxide, and inert gases.
Filtration and purification of fluids including electroplating solutions, metal cutting fluids, cleaning solutions, photoresists, magnetic media, industrial circulating water, and other process liquids.