Tangential Flow Hollow Fiber Cartridge
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hollow fiber filter manufacturer
High-Performance Membrane Filtration for Water, Pharmaceutical and Industrial Applications
✔ High Flux Membrane
✔ Excellent Bacteria Removal
✔ OEM Customization
✔ Factory Direct Supply
Why Choose hollow fiber filter cartridge
Many conventional filter cartridges struggle to remove bacteria, colloids, and microscopic suspended solids without causing high pressure loss.
Hollow fiber membrane technology solves these challenges by providing an extremely large filtration area within a compact cartridge. Its millions of uniform membrane pores enable efficient separation while maintaining high water flux and long service life.
typical filtration challenges
Industrial users across water treatment, pharmaceutical, and manufacturing sectors frequently encounter these operational challenges:
| Challenge | Impact |
|---|---|
| Frequent Cartridge Replacement | High consumable costs and production downtime |
| Membrane Fouling | Gradual flux decline, reduced throughput, and premature failure |
| Low Water Recovery | Wasted feedwater and increased disposal costs |
| High Operating Pressure | Elevated energy consumption and system stress |
| Inconsistent Filtration Quality | Variable product quality and compliance risks |
| Bacteria Breakthrough | Product contamination and safety hazards |
| Limited Installation Space | Difficulty fitting adequate filtration capacity |
| Product Shear Damage | Degradation of sensitive biological products |
How Hollow Fiber Filters Solve These Problems
- Cross-flow design continuously sweeps the membrane surface, preventing particle accumulation and dramatically extending cartridge lifespan compared to dead-end filters.
- Hydrophilic membrane surface chemistry minimizes protein adsorption and organic fouling. Advanced materials achieve flux recovery rates exceeding 90%.
- Hollow fiber geometry enables efficient filtration with minimal waste. Combined with reverse osmosis systems, recovery rates can be optimized for sustainable water reuse.
- The open-lumen fiber structure and optimized fluid dynamics reduce transmembrane pressure requirements, cutting energy costs.
- Precise pore size control (0.05–0.45μm) delivers consistent and verifiable bacteria, endotoxin, and spore removal that surpasses traditional membrane filters.
- Thousands of fibers in a single cartridge provide exceptional filtration capacity in a compact footprint.
- Smooth, open-lumen fluid channels protect shear-sensitive biomolecules, cells, and viral vectors.
working principle of hollow fiber filters
The Filtration Principle
Hollow fiber membrane filtration operates on a simple yet highly effective principle: thousands of microscopic tubular membranes are bundled together and sealed within a cartridge housing. Each hollow fiber features an asymmetric wall structure with a dense separation layer on either the inner or outer surface, supported by a porous substructure.
Inside-Out Flow Configuration (Standard)
Feed liquid is pumped into the lumen (interior channel) of each hollow fiber. Under pressure-driven flow, purified liquid permeates radially outward through the membrane wall, while suspended solids, bacteria, and macromolecules are retained within the fiber lumen. The continuous cross-flow of feed liquid along the fiber interior sweeps retained particles toward the retentate outlet, minimizing fouling and extending operational life.
Outside-In Flow Configuration (Alternative)
For certain applications, feed flows outside the fibers, and permeate is collected from the lumen interior. This configuration is preferred for higher-solids feed streams where external sweeping action helps keep the membrane surface clean.
Key Operational Parameters
- Fiber Inner Diameter: Standard 0.5mm and 1.0mm options. Smaller diameters increase packing density and surface area; larger diameters suit high-viscosity or high-solids fluids.
- MWCO: For permeation applications, pore size should be 5–10× larger than the target molecule; for retention applications, 1/3 to 1/5 of the target molecular weight.
- Shear Rate: Typically 2,000–10,000 s⁻¹, significantly lower than the shear forces generated by flat-sheet cassettes.
Why Choose Huahang Filter
Huahang Filter operates from a modern 26,000 m² ISO-certified facility equipped with advanced production machinery including corrugating machines, potting machines, argon arc welders, and automated production lines. The company employs over 70 professional staff, including dedicated R&D engineers, production technicians, and quality control experts.
- Professional Manufacturer: Specialized in high-quality replacement hydraulic filter elements with advanced production equipment
- Quality Assurance: Every filter element undergoes rigorous inspection before shipment, ensuring compliance with ISO standards
- Competitive Pricing: Direct factory pricing with no middleman markups
- Technical Support: Experienced engineering team available for application consultation
- Custom Solutions: Customization services available for special requirements
FAQ
Q1: How long does a hollow fiber cartridge last?
A1:Service life varies by application. For drinking water, replace every 6–12 months or after 900–7,000 liters. For industrial UF systems, first-stage cartridges can last up to 3 years under proper maintenance. Replace when flow drops significantly or operating pressure rises.
Q2: Can hollow fiber membranes remove bacteria?
A2: Yes. Microfiltration and ultrafiltration hollow fiber membranes effectively remove bacteria.
Q3: Can hollow fiber membranes remove viruses?
A3: Yes, but only ultrafiltration (UF) membranes with pore sizes of 0.01–0.05μm can remove viruses. Microfiltration (MF) membranes with larger pores (0.05–0.45μm) are not effective for virus removal.
Q4:How do I clean a hollow fiber cartridge?
A4:Regular backwashing from the permeate side is the most effective cleaning method. Chemical cleaning may be used for organic or biofouling. Always consult the product datasheet for your specific cartridge's cleaning protocol.
Q5: When should I replace the cartridge?
A5: Replace when you notice a significant flow reduction that backwashing cannot restore, when operating pressure increases, when the rated processing capacity is reached, or every 12 months for hygienic applications.
Q6: Can hollow fiber cartridges be backwashed?
A6: Yes. Backwashing is a major advantage of hollow fiber designs-it dislodges accumulated particles and foulants from the membrane surface. More frequent backwashing improves flow performance and extends cartridge life.
Q7: What chemicals are compatible with PVDF membranes?
A7: PVDF membranes are compatible with aggressive acids, alcohols, chlorine, and oxidizing agents. Avoid acetone, DMF, DMSO, and bases stronger than 6N. Consult our technical team for specific chemical compatibility assessments.
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