This article introduces the 5 micron high flow filter cartridge, a widely used high-flow precision filter for ultrafiltration pretreatment in industrial water treatment. A liquid filter adopting pleated polypropylene media, it balances high throughput and reliable particle retention to protect downstream UF membrane modules effectively. Our 5 micron high flow filter cartridge can replace High Flow Pleated Liquid Filter Cartridge HFU660UY060J for UF, extensively used for power plant condensate polishing, raw water purification and industrial wastewater reuse. The 5μm filtration rating intercepts suspended solids, large colloids and silt, lowering feed water SDI and mitigating membrane fouling risk for ultrafiltration systems.
5 Micron High Flow Filter Cartridge for Ultrafiltration Pre-treatment
This article introduces the 5 micron high flow filter cartridge, a widely used high-flow precision filter for ultrafiltration pretreatment in industrial water treatment. A liquid filteradopting pleated polypropylene media, it balances high throughput and reliable particle retention to protect downstream UF membrane modules effectively. Our 5 micron high flow filter cartridge can replace High Flow Pleated Liquid Filter Cartridge HFU660UY060J for UF, extensively used for power plant condensate polishing, raw water purification and industrial wastewater reuse. The 5μm filtration rating intercepts suspended solids, large colloids and silt, lowering feed water SDI and mitigating membrane fouling risk for ultrafiltration systems.
The 5 micron high flow filter cartridge is a pleated high flow filter element optimized for general industrial ultrafiltration pretreatment. As the most popular grade in high flow filter series, 5 micron high flow filter cartridge delivers balanced performance: strong contaminant holding capacity, high single-element flow rate and moderate pressure drop. Compared with 1μm fine filters, it can handle feed water with higher turbidity and longer service cycles, making it the preferred primary security filter for most standard UF systems. It adopts outer-to-inner radial flow structure, and supports multiple lengths of 20”,40”,60”, compatible with standard high flow filter housings for small UF skids and large full-scale water treatment plants.
This filter cartridge is fully interchangeable with Big Flow Rate Filter Cartridge for Ultrafiltration Pretreatment, and matches the sealing and interface specifications of High Flow Liquid Filter for Industrial Ultrafiltration Systems. Installed immediately upstream of ultrafiltration membrane racks, the 5 micron high flow filter cartridge removes coarse silt, suspended particles, rust debris and large organic fragments from raw feed water. Without this prefiltration protection, solid particles will scratch UF membrane surfaces, block membrane pores and gradually build up irreversible fouling. When membrane fouling accumulates, water flux decreases, chemical cleaning frequency rises, and the service life of expensive ultrafiltration membranes is shortened. If your project requires alternative filter options for UF pretreatment, Pleated High Flow Filter for Industrial Ultrafiltration Systems is another reliable product for reference.
The 5 micron high flow filter cartridge is constructed with reinforced polypropylene inner core and outer support cage, capable of enduring fluctuating differential pressure under continuous long-time operation. Gradient pleated polypropylene media provides stable 5 micron filtration efficiency while maintaining low initial pressure drop. The gradient design distributes captured pollutants evenly within the filter media, instead of clogging only the outer surface. Optional gaskets include EPDM, silicone and Viton to satisfy varied liquid temperature and chemical compatibility demands. Even with 5 micron rating, the pleated high-flow structure enables large water throughput per cartridge, reducing the total number of filter elements and housings required for your ultrafiltration pretreatment system, which saves capital cost and simplifies maintenance work.
The 5 micron high flow filter cartridge works based on pleated depth filtration principle, combining surface screening and deep adsorption interception. Raw water flows radially from the outer pleated surface of the filter cartridge, passes through multi-layer graded polypropylene media, purified liquid flows inward through the central inner core and exits from the end port of the filter element.
Large contaminants including sand grains, rust fragments and large organic particles are trapped on the outer pleated layer. Fine suspended solids and larger colloids above 5 micron are captured inside the gradient filter layers. The gradient density design allows pollutants to distribute evenly inside filter media rather than accumulating only on the outermost surface. This feature maximizes dirt holding capacity and extends filter service cycle, preventing rapid pressure rise within a short operation time.
Within the ultrafiltration pretreatment workflow, the 5 micron high flow filter cartridge serves as the primary protective barrier for ultrafiltration membranes. It reduces the Silt Density Index (SDI) of inlet water and cuts down the particulate load entering UF membrane modules. When inlet and outlet differential pressure reaches the preset threshold, filter cartridge replacement is required. The high flow design reduces cartridge quantity, simplifying spare part inventory management and filter replacement operations for maintenance teams on site.
| Item | Specification |
|---|---|
| Product Name | 5 Micron High Flow Filter Cartridge |
| Filter Media | Pleated Gradient Polypropylene |
| Core & Support Cage | Reinforced Polypropylene |
| Filtration Rating | 5 micron |
| Available Length | 20 inch /40 inch /60 inch |
| Outer Diameter | 4.5 inch (standard high flow size) |
| Max Operating Temperature | 82℃ |
| Max Differential Pressure | 3.4 bar at 20℃ |
| Optional Gasket | EPDM, Silicone, Viton |
| Single Cartridge Flow | Up to 85 m³/h (60” length, clean water) |
| Application | Ultrafiltration prefiltration, RO prefiltration, condensate polishing |
| Compatible Medium | Raw water, seawater, brackish water, weak acid & weak alkali liquid |
All parameters are tested under standard laboratory environments. Actual flow rate and dirt holding capacity will be affected by raw water turbidity, liquid temperature and impurity concentration. Our engineering team can customize end cap connection and gasket material according to your on-site ultrafiltration project requirements.
All 5 micron high flow filter cartridge products are manufactured under ISO9001 quality management system. Raw filter media will be strictly inspected before production to check pinholes, uneven thickness and material defects. Every finished filter cartridge will go through bubble point integrity test, particle retention efficiency test, pressure resistance test and full visual inspection before shipment.
Automated pleating equipment ensures consistent pleat density for each filter element, guaranteeing stable 5μm filtration efficiency and dirt holding capacity. Reinforced inner core prevents media collapse under variable operating pressure, which is a common failure mode of low-cost filter cartridges. All filter cartridges are cleaned and packed in dust-free workshop to avoid secondary contamination before delivery.
We provide batch inspection reports for each order. Third-party material testing can be arranged upon customer request. Our replacement filter elements deliver stable filtration performance, with good cost performance. Our products are fully tested to prevent media shedding, which is essential to avoid secondary contamination to ultrafiltration membrane modules.
This is the core application. The 5 micron high flow filter cartridge works as the standard security filter before ultrafiltration membrane racks for most pure water and water reuse projects. It removes particles and large colloids, stabilizes inlet SDI value, protects UF membranes and reduces chemical cleaning frequency.
Power plants widely adopt this 5 micron high flow filter cartridge for condensate polishing systems, removing iron oxide particles and suspended impurities to protect boilers and downstream ultrafiltration and RO membrane equipment.
For chemical, food and beverage wastewater recycling projects, it acts as pre-filter for ultrafiltration systems, lowering particulate pollutant load and improving system water recovery rate.
In desalination plants, this filter cartridge intercepts silt, algae fragments and suspended solids, protecting ultrafiltration and reverse osmosis membranes in the pretreatment skid.
Municipal water plants use the 5 micron high flow filter cartridge in UF drinking water purification process, removing suspended impurities in river or lake raw water to extend ultrafiltration membrane service life.
A: It serves as the standard security pre-filter for ultrafiltration systems. It intercepts particles and larger colloids above 5 micron, reduces SDI value of incoming water, prevents abrasion and fouling of ultrafiltration membranes, and extends the service life of UF membrane modules.
A: The 5μm model features higher flow rate and larger dirt holding capacity with longer service life, suitable for most conventional UF pretreatment. 1 micron filters capture finer particles and colloids, for high-purity water projects with stricter water quality requirements, while they clog faster when raw water turbidity is high.
A: Yes. It is a mainstream selection for condensate polishing systems. The 5 micron rating can efficiently remove iron oxide particles and suspended contaminants in condensate water, protecting downstream ultrafiltration and reverse osmosis equipment.
A: It is the default choice for most ultrafiltration projects. Select it when raw water contains mainly silt and coarse suspended solids, and your system does not require ultra-fine particle removal. Our technical team can offer professional recommendations after reviewing your water quality report.
A: Replacement cycle depends on raw water impurity load. Normally, replace the cartridge when inlet-outlet differential pressure reaches 2.5 bar. It has a longer service cycle than 1 micron filters under the same raw water condition.
A: Yes. We support custom end cap connection styles and multiple gasket materials including EPDM, silicone and Viton to fit your existing filter housing and working medium.
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