This article introduces the 50 micron high flow filter cartridge, a coarse grade filter element serving as the first-stage pretreatment protection before ultrafiltration systems. A liquid filter constructed with pleated polypropylene media, it delivers maximum single-element flow rate and high dirt holding capacity to intercept large solid contaminants. Our 50 micron high flow filter cartridge can replace High Flow Pleated Liquid Filter Cartridge HFU660UY060J for UF, widely used in raw water pretreatment, industrial circulating water and water reuse projects. The 50μm filter removes large suspended solids, debris and coarse sediments, lowering the particulate load and protecting downstream fine filters and ultrafiltration modules.
50 Micron High Flow Filter Cartridge for Ultrafiltration Pre-treatment
This article introduces the 50 micron high flow filter cartridge, a coarse grade filter element serving as the first-stage pretreatment protection before ultrafiltration systems. A liquid filter constructed with pleated polypropylene media, it delivers maximum single-element flow rate and high dirt holding capacity to intercept large solid contaminants. Our 50 micron high flow filter cartridge can replace High Flow Pleated Liquid Filter Cartridge HFU660UY060J for UF, widely used in raw water pretreatment, industrial circulating water and water reuse projects. The 50μm filter removes large suspended solids, debris and coarse sediments, lowering the particulate load and protecting downstream fine filters and ultrafiltration modules.
The 50 micron high flow filter cartridge is a pleated high flow filter element developed for primary pretreatment of industrial ultrafiltration systems. As the coarsest specification within the high flow filter lineup, the 50 micron model is designed specifically to capture large-sized particulate impurities. It provides ultra-high flow rate per cartridge and excellent dirt holding capacity with minimal pressure drop, which makes it the ideal first barrier for raw water carrying heavy coarse debris and sediment. Compared with 25μm,10μm,5μm and 1μm high flow filter cartridges, the 50 micron filter takes the first hit of large particle pollution in multi-stage pretreatment sequences, greatly reducing the contamination burden for subsequent finer filtration stages. It adopts outer-to-inner radial flow design and is available in 20”,40”,60” lengths, compatible with standard high flow filter housings for compact skid-mounted ultrafiltration units and large industrial water treatment facilities.
This filter cartridge is fully interchangeable with Big Flow Rate Filter Cartridge for Ultrafiltration Pretreatment, and meets the sealing and connection requirements of High Flow Liquid Filter for Industrial Ultrafiltration Systems. Installed at the front end of ultrafiltration membrane racks, the 50 micron high flow filter cartridge captures coarse sediment, large solid fragments and bulky suspended matter from incoming raw water. Without this primary prefiltration step, large hard particles will scratch and clog the downstream filter media and ultrafiltration membranes quickly, leading to rapid flux drop and frequent maintenance. Heavy particle fouling may cause irreversible damage to UF membrane modules. When designing graded multi-stage filtration for ultrafiltration pretreatment, Pleated High Flow Filter for Industrial Ultrafiltration Systems offers additional filter grades for combined filtration solutions.
The 50 micron high flow filter cartridge is built with reinforced polypropylene inner core and outer support cage, capable of enduring fluctuating differential pressure under continuous long-duration operation. Gradient pleated polypropylene media maintains stable 50 micron filtration efficiency while keeping initial pressure loss low. The gradient structure evenly distributes trapped contaminants throughout the filter media rather than letting pollutants block only the outer filter surface. Optional gasket materials include EPDM, silicone and Viton to match different liquid temperature ranges and chemical compatibility requirements. Thanks to the coarse 50μm filtration rating, this filter cartridge achieves the highest flow rate and longest service cycle among high flow filter options, reducing filter replacement frequency and cutting operational costs for your ultrafiltration pretreatment system.
The 50 micron high flow filter cartridge operates 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 such as big sediment grains and bulky solid debris are trapped on the outer pleated layer. All solid particles larger than 50 micron are captured within the gradient filter layers. The gradient density design allows pollutants to distribute evenly inside filter media instead of accumulating only on the outermost surface. This design maximizes dirt holding capacity and extends filter service cycle, avoiding rapid pressure rise after short operating hours.
In the complete ultrafiltration pretreatment workflow, the 50 micron high flow filter cartridge functions as the first protective barrier before secondary fine filters and UF membranes. It removes most coarse suspended solids and significantly reduces the total pollutant load for downstream filtration equipment. Filter cartridge replacement should be performed once the differential pressure between inlet and outlet reaches the preset threshold. The high-flow characteristic reduces the total quantity of filter cartridges required, simplifying spare parts inventory management and on-site filter replacement work for maintenance teams.
| Item | Specification |
|---|---|
| Product Name | 50 Micron High Flow Filter Cartridge |
| Filter Media | Pleated Gradient Polypropylene |
| Core & Support Cage | Reinforced Polypropylene |
| Filtration Rating | 50 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 105 m³/h (60” length, clean water) |
| Application | Ultrafiltration prefiltration, raw water pretreatment, water reuse |
| Compatible Medium | Raw water, 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 50 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 50μm 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 50 micron high flow filter cartridge serves as primary security filter for ultrafiltration systems, especially suitable for raw water with high sediment and large debris content. It removes coarse particles and bulky suspended solids, reduces overall pollutant load and protects downstream fine filters and UF membrane components.
In industrial circulating water systems, this filter cartridge intercepts large rust debris and solid sediments before water enters ultrafiltration units, reducing particle abrasion and extending the service life of ultrafiltration equipment.
For industrial water reuse systems, it acts as the first pre-filter before ultrafiltration, removing large solid impurities and lowering the solid load for subsequent filtration stages, improving the stability of the whole water recycling system.
Industrial plant raw water intake systems adopt this 50 micron high flow filter cartridge to remove large sediment and debris from river or lake source water, reducing the burden on subsequent ultrafiltration pretreatment processes.
The filter can also be applied for general industrial liquid pre-filtration, removing large particulate contaminants from process liquids to protect downstream ultrafiltration and fine filtration equipment.
A: It acts as the first-stage pre-filter for ultrafiltration systems. It intercepts coarse particles larger than 25 micron, reduces the total solid load of incoming water, protects downstream fine filters and ultrafiltration membranes from large particle abrasion, and stabilizes the whole pretreatment system.
A: The 25μm version provides the highest flow rate and largest dirt holding capacity, suitable for raw water with massive coarse sand and debris. The 10μm filter can trap finer particles and colloids, used as secondary protection after 25μm filters for ultrafiltration systems with stricter water quality requirements.
A: Yes. It is widely used for primary condensate polishing. The 25 micron rating can efficiently remove large iron oxide particles and suspended contaminants in condensate water, protecting downstream ultrafiltration and reverse osmosis equipment.
A: Choose 25μm when raw water carries plenty of coarse sand and large debris. It is usually the first step of multi-stage graded pretreatment before ultrafiltration. Our technical team can provide 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 the longest service cycle among 1/5/10/25 micron high flow 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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