Why Choose FiltEdge Membrane Filter Cartridges?
FiltEdge Membrane Filter Cartridges utilize nanoscale hydrophilic coating technology, which significantly reduces membrane surface wetting resistance and initial pressure drop. Membrane cartridges also feature a unique asymmetric polyether sulfone (PES) membrane structure for high flux and retention stability. Each cartridge is 100% integrity tested to optimize the effective filtration area of the membrane component, increasing the dirt-holding capacity of a single cartridge by up to 25%, and the membrane cartridge meets FDA-approved zero-risk filtration guarantees. Our high-strength polypropylene support layer ensures that the cartridges remain stable after multiple autoclave cycles, further extending replacement intervals.
What Is a Membrane Filter Cartridge?
Membrane filter cartridges are absolute filtration media with a precise, uniform microporous structure that ensures 100% retention of target-size contaminants through a physical sieving mechanism and a large effective filtration area in a very small volume. FiltEdge Membrane Folded Cartridges utilize nanoscale membrane technology with optimized hydrophilic membrane materials to ensure that they are ready to use, eliminating the need for lengthy wetting processes and keeping your production line running at full capacity at all times. Adhesive-free, full hot-melt welding prevents secondary contamination of the fluid with chemical additives, giving you extremely low TOC residuals.
FiltEdge Membrane Filter Cartridges Series
FiltEdge membrane filter cartridges series include PES series, PTFE series, PVDF series and Nylon series.
PES filter cartridges are made of asymmetric PES membranes with precise pore size down to 0.22 micron and very narrow pore size distribution, which can be used in the high-end market of biopharmaceuticals and drinking water.
Hydrophobic and hydrophilic PTFE membranes are available, chemically stable even at pH 1–14, can be operated at 95 degrees Celsius and full load. Can be used for wet chemical processes, tank aeration filtration.
Mechanically strong and oxidation-resistant, meets USP <88> standards, and extremely low dissolved matter ensures fluid purity. Supports multiple sterilizations for fine solvent handling, ozonated water environments.
Uses nylon 66 film that is ready to use without pre-wetting, with natural wettability and no alcohol pre-treatment, for LCD panel development, ink coatings and organic solvent clarification.
Key Features of FiltEdge Membrane Filter Cartridges
FiltEdge membrane filter cartridges have excellent chemical compatibility, severe mechanical strength, very low chemical precipitates, and high filtration area.
PES has good hydrophilicity and high flux, PTFE has strong corrosion resistance, good at strong acid, alkali and air, pvdf is oxidation resistant, nylon can resist organic solvents.
Precise and robust, can withstand multiple frequent sterilization cycles and reverse pressure fluctuations, PVDF or PES can usually withstand 121 degrees Celsius – 135 degrees Celsius more than 100 times the steam cycle, the forward pressure difference of 25 degrees Celsius can be up to 0.42 – 0.50 MPa. Reverse pressure difference of up to 0.21 MPa.
ISO Class 7 (Class 10,000) cleanroom production, the use of non-adhesive heat fusion welding process, does not contain surfactants, TOC leaching is very low, the center rod, section cover must be through the USP Class VI – 121 ℃ plastic biosafety testing, and volatile residues are usually required to be less than 10mg per 10-inch cartridge.
High flux and low differential pressure, not stacked structure and multi-layer composite folding process, high-performance PES membrane with a gradient pore size structure, the membrane cartridge internal pleating design. A standard 10-inch filter cartridge can have an effective filtration area of 0.65 square meters to 0.85 square meters. At a differential pressure of 0.01 MPa, a 0.22 m PES cartridge will typically provide a purified water flux of 15 – 20 L/min at 25°C.
FiltEdge Nanoscale Asymmetric Membrane Forming Process
In the precision casting process, the asymmetric membrane formation process is the core of the technology to achieve a balance between “high flux” and “long life” of the membrane cartridge. By strictly controlling the solvent diffusion rate of the polymer solution in the solidification bath, the membrane sheet forms a remarkable anisotropic structure in the microscopic area. By strictly controlling the solvent diffusion rate of the polymer solution in the solidification bath, the membrane sheet forms a remarkable anisotropic structure in the microstructure, and the longitudinal cross-section is funnel-shaped. The process produces membranes with a pronounced layered feel and excellent pore size uniformity: the side near the fluid inlet has large openings (~1.2 – 3.0 microns) and acts as a built-in pre-filtration layer, while the “dense layer” near the output shrinks down to a precise nominal 0.22 microns.
Bubble point testing demonstrates very high-pressure stability, and asymmetric PES membranes typically utilize 25% more effective filtration area (EFA) than homogeneous membranes. In precision electronic ultrapure water applications, they consistently block particles over 0.1 m at 99.99% efficiency, while maintaining extremely high flow rates, which essentially mitigates the rapid formation of surface cake.
FiltEdge High-Strength Support Structure
The high-performance membrane cartridge has a complex internal support layer and hydrodynamic structure to ensure stable operation of the system. Precise modeling of the internal flow field of the cartridge by Computational Fluid Dynamics (CFD), advanced “wide pleat” technology effectively avoids the common phenomenon of folding failure of traditional folded structures under high-pressure differential environments, and the synergistic effect of the Hot-melt Spacing (HMS) technology can be achieved through the use of a wide pleat. The synergy of Hot-melt Spacing maintains long term flow paths without deformation or closure. The core components, such as the center rod, are made of high strength PP or FEP to optimize the stress distribution of the structure, while the extremely high open porosity provides low resistance to the fluid, which can reach an instantaneous positive impact pressure of 0.6 MPa (87 psi), and can be reduced through the use of a wide pleat under severe high temperature conditions at 80°C. The center rod can be used as the center rod for the flow path. In addition, the filter element lasts up to two times longer than conventional cartridges by reducing shear stress and optimizing the effective flow path in harsh, high-temperature environments.
Why Choose FiltEdge as Your Membrane Filter Cartridges Supplier?
FiltEdge has been present at the Amsterdam Water Show, the American Water Quality Association Show, and the Shanghai International Water Show. We have been focusing on the research and development of high-performance membrane filter cartridges for more than 20 years, and as a professional industrial grade supplier in the filtration field, we have a modern production base of 4,000 square meters, 6 fully automated production lines, and 120 professional technicians. All of our products have passed ISO 9001 quality management system certification and strictly comply with international health and safety standards such as FDA, RoHS, etc.
Applications of Membrane Filter Cartridges
Membrane filter cartridges are used in the chemical, food and beverage, semiconductor and microelectronics, and biopharmaceutical industries.
Hydrophilic PES membranes have extremely low protein binding, 0.22 micron end-of-line membrane cartridges minimize loss of active ingredients, pass the ASTM F838 challenge test, and have extremely low endotoxin levels.
Mineral water production usually use 0.45 micron or 0.65 micron nylon or PES membrane cartridge, can intercept mold and yeast, a single 30-inch cartridge area can reach more than 2.1 square meters.
Membrane cartridges for ultrapure water systems are typically 0.01 micron to 0.03 micron and utilize asymmetrically structured polytetrafluoroethylene (PTFE) or high-performance PES membranes that can withstand 98% concentrated sulfuric acid and high concentrations of HF and maintain structural integrity.
Naturally hydrophobic polytetrafluoroethylene (PTFE) membranes have very low surface energy and can effectively block water droplets from penetrating through the membrane. These cartridges are highly suitable to filter incoming air into various process tanks, with an interception efficiency of 99.999% for particles and aerosols in the 0.01 μm class.
Technical specification
- Technical specification
| Micron rating (µm) | 0.12, 0.22, 0.45, 1 |
| materials | PES/PTFE/PVDF membrane, Nylon |
| EFA | ≥0.65㎡ |
| Max. Forward Differential Pressure | Pressure 0.42 MPa (61 psi) @ 25°C; 0.21 MPa @ 80°C |
| Sterilization & Max. Temperature | 85°C (Continuous); 121°C Steam (SIP) ≥30 cycles |
| Integrity Test (Bubble Point) | ≥ 3.2 bar (46 psi) for 0.22 μm PES |
Testimonials
- “Reliability is everything in biopharmaceutical end-of-line filtration.”
“The product is very sensitive to protein adsorption, and after trying a number of suppliers, we finally chose the FiltEdge PES Series membrane cartridge. I think we are very pleased with its performance. The integrity test pass rate has remained at 100% for more than a year of continuous use, and production safety is not an issue that can be overlooked.”
LucasQuality Control Manager, International Biopharmaceutical Company - “The perfect defense for semiconductor pure water systems.”
“FiltEdge PTFE high performance cartridge has performed amazingly well at the end of our 18MΩ ultrapure water system. Not only does it withstand extremely high flow rates, but TOC dissolution is minimal. We are most impressed with the ‘ready-to-use’ nature of the cartridge, which has shortened our flushing time after system maintenance and dramatically improved the efficiency of our production line operations.”
NoahProcess Engineer, High-End Microelectronics Manufacturing Plant “We often encounter high temperatures and pressure fluctuations in our fine chemical processes. Previously, we were using cartridges that were prone to folding and merging, resulting in a rapid increase in pressure drop. Replacing them with FiltEdge high-strength support structure cartridges has completely doubled the life of the cartridges, even at temperatures as high as 80°C. The return on investment has been significant. The return on investment is significant.”
HenryTechnical Director, Industrial Filtration System Integrator- “Highly specialized industrial grade supplier.”
“We started working with FiltEdge after attending the Water Show in Amsterdam, and after trying it out with this company, we’ve bought back several times. Not only do they provide high-quality membrane cartridges, but they even include a detailed technical validation guide to help us get up and running quickly.
EmmaPurchasing Director of a Leading Beverage Packaging Company
This is due to our nanoscale asymmetric polyether sulfone (PES) membrane structure. Unlike traditional homogeneous membranes, our asymmetric membranes have a “funnel-like” pore size, with a large upstream pore size and a dense downstream pore size.
Combined with CFD hydrodynamically optimized wide pleat technology, this structure significantly reduces the wetting resistance and initial pressure drop across the membrane surface, resulting in a flux increase of approximately 25-30% at the same pressure.
We adhere to the ASTM F838 standard. Every filter cartridge undergoes a 100% integrity test (e.g., bubble point test) before it leaves the factory to ensure that it retains more than 99.9999% of target contaminants such as Pseudomonas aeruginosa. In addition, the products are manufactured in an ISO Class 7 clean room, which meets the biosafety requirements of the FDA and USP Class VI, ensuring zero risk of contamination.
Hydrophobic PTFE: Specialized for sterilization filtration of air, nitrogen and other gases or tank breathers, it can effectively block water.
Hydrophilic PTFE: After special surface modification, it can be directly used for liquid filtration of strong acid, alkali or oxidizing chemical solvents, no need for alcohol pre-wetting, ready to use.
FiltEdge cartridges are fully heat-welded and contain no adhesives. The high-strength polypropylene or FEP support layer and center rod construction allows it to withstand more than 30 – 100 steam in-line (SIP) or autoclave cycles at 121°C – 135°C and withstand instantaneous positive pressure shocks of up to 0.6 MPa.
Our Nylon series filter cartridges are naturally wettable and can be put into use without pre-wetting. It is ideal for LCD panel development, photoresist filtration, and clarification of organic solvents because the nylon material has excellent resistance to organic solvents and very low precipitates.
