Overview
Pall brand high-flow water filter cartridges are core components designed for high-flow filtration scenarios. Featuring a 6-inch (152mm) or larger diameter structure, a single cartridge can achieve a flow rate of up to 120m³/h, enabling efficient filtration through pleating technology and gradient pore size design. Their core advantages lie in high-flow processing capability (reducing cartridge quantity by over 50%), long service life (72-hour backwashing cycle), and high chemical resistance (resistant to strong acids/alkalis and organic solvents), widely applied in water treatment, pharmaceuticals, food & beverage, and other industries. Compared with traditional cartridges, Pall high-flow cartridges can reduce equipment investment costs by 30%-50% under the same flow rate while decreasing maintenance frequency, especially suitable for high-flow scenarios like RO reverse osmosis pretreatment and seawater desalination.
Core Technical Parameters and Structural Design
I. Key Technical Parameters
- Filtration Precision: 0.1-100μm (melt-blown PP cartridges) or 0.45-70μm (glass fiber cartridges), meeting full-scenario needs from coarse to precision filtration.
- Materials: Filter media of polypropylene (PP) or glass fiber, support layers and end caps of glass fiber-reinforced PP, sealing materials EPDM, fluoroelastomer, etc., temperature resistance range -20℃ to 80℃.
- Flow Characteristics: Water flux of a single 40-inch cartridge reaches 110m³/h, pressure drop ≤2.4Bar (recommended replacement value), maximum allowable pressure drop 3.5Bar.
- Dimensions: Lengths include 508mm (20 inches), 1016mm (40 inches), 1524mm (60 inches), outer diameter 152mm or 170mm, compatible with standard high-flow filters.
II. Structural Innovations
1. Inside-out Flow Design: Fluid flows from the cartridge interior to the exterior, trapping impurities inside to avoid secondary contamination and simplifying replacement (no need to clean the filter housing).
2. Gradient Pore Size Technology: Pore sizes gradually increase from the inner to outer layers, forming a coarse-to-fine gradient structure, with dirt-holding capacity improved to 1-3kg/m² and service life extended 2-3 times compared to ordinary cartridges.
3. Center Rod-Free Design: The cartridge uses an integral support structure, avoiding fluid short-circuiting caused by traditional center rods while enhancing compressive strength (withstands 1.6MPa pressure).
Application Scenarios and Advantages
I. Typical Application Fields
1. Water Treatment Industry
- RO Reverse Osmosis Pretreatment: 5μm PP cartridges intercept colloids and particulate impurities, extending RO membrane life. A single 40-inch cartridge replaces 30 traditional 2.5-inch cartridges, reducing system volume by 50%.
- Seawater Desalination: A coastal desalination station uses Pall 5μm cartridges resistant to Cl⁻ concentration >20,000ppm, with a 72-hour backwashing cycle (PP cartridges last only 24 hours), reducing annual maintenance costs by 40%.
2. Pharmaceuticals & Biotechnology
- API Purification: 1μm glass fiber cartridges remove crystal impurities in cephalosporin antibiotics, increasing product purity from 98.5% to 99.8%, compliant with GMP standards.
- Water for Injection Filtration: 0.22μm melt-blown PP cartridges with steam sterilization (121℃/30min) achieve >99.99% bacterial interception efficiency, meeting FDA certification requirements.
3. Food & Beverage Industry
- Beer Clarification: 0.45μm cartridges filter fermentation broth with turbidity <0.5NTU, eliminating the need for filter aids, with filtrate quality superior to traditional diatomite filtration.
- Edible Oil Degumming: 5μm cartridges remove phospholipid impurities, increasing oil yield by 2% while avoiding residue risks from chemical degumming.
4. Chemical & Petrochemical
- Solvent Recovery: 316L stainless steel-reinforced cartridges filter organic solvents like dichloromethane, with a service life of 3 years (PP cartridges last only 6 months), saving over 2 million yuan in annual solvent costs.
- Catalyst Recovery: 10μm cartridges achieve 99.5% recovery rate in polyethylene production, significantly reducing raw material loss.
II. Core Advantages Comparison
Indicator | Pall High-Flow Cartridge | Traditional PP Cartridge | Stainless Steel Pleated Cartridge |
Single Cartridge Flow | 110m³/h (40 inches) | 3-5m³/h (10 inches) | 2m³/h (10 inches) |
Chemical Resistance | Resistant to strong acids, alkalis, and organic solvents | Only resistant to weak acids and alkalis | Resistant to strong acids/alkalis but high cost |
Dirt-Holding Capacity | 1-3kg/m² | 0.2-0.5kg/m² | 1-2kg/m² |
Service Life | 2-5 years (reusable with cleaning) | 3-6 months | 2-5 years but requires regular chemical cleaning |
Environmental Friendliness | Recyclable, solid waste reduced by 80% | Disposable, high pollution | 100% recyclable but high initial cost |
Selection and Maintenance Guidelines
I. Selection Recommendations
1. Precision Selection:
- Pretreatment (e.g., RO security filtration): 5-20μm;
- Precision filtration (e.g., electronic-grade water): 0.22-1μm;
- High-viscosity fluids (e.g., syrup): 10-100μm.
2. Material Matching:
- Acidic media: Prioritize PP material;
- High-temperature scenarios (>80℃): Customize metal-reinforced cartridges;
- Food & pharmaceutical: Use FDA-certified pure PP or glass fiber cartridges.
3. Interface Compatibility:
- Standard interfaces: 222, 226, M30;
- Special needs: Customizable threaded or flange interfaces.
II. Maintenance Key Points
1. Backwashing:
- Pressure ≤0.2MPa, combined with ultrasonic vibration to remove surface impurities, reusable 50-100 times.
2. Chemical Cleaning:
- Oily contamination: Circulating cleaning with 10% sodium hydroxide solution;
- Biological contamination: Soaking with sodium hypochlorite solution (concentration ≤0.5%), avoiding reaction with PP material.
3. Monitoring & Replacement:
- Replace when pressure difference >2.4Bar or flow drops by 30%;
- Recommend integrity testing (e.g., bubble point test) quarterly.
Conclusion
Pall brand high-flow water filter cartridges have become benchmark products in industrial filtration due to their high flow, long life, and resistance to extreme conditions. Their core value lies in solving the efficiency and cost pain points of traditional cartridges in high-flow scenarios through structural innovations (e.g., gradient pore size, center rod-free design) and material optimization (medical-grade PP/glass fiber). With stricter environmental regulations and industrial automation upgrades, the reusability and intelligent monitoring functions (e.g., integrated pressure difference sensors) of Pall cartridges will further expand their application scope. In the future, combined with nanocoating technologies (e.g., superhydrophobic surfaces) and AI predictive maintenance systems, Pall high-flow cartridges are expected to achieve more precise filtration control in high-value fields like semiconductors and new energy, driving the industry toward efficiency and sustainability.
