High flow filter refers to large-diameter pleated filter cartridges widely applied in industrial ultrafiltration pretreatment. This liquid filter delivers high dirt holding capacity and stable low differential pressure under continuous high-volume raw water operating conditions. Our product portfolio includes Replace 3M 740B Series High-Flow Cartridge and 3M High-flow water filter cartridge to build multi-stage prefiltration skids for raw water treatment. The high flow filter provides reliable upstream membrane protection for municipal water reuse, power, chemical, food and beverage water treatment projects across the globe.
High Flow Filter Cartridge for Industrial UF Water Pretreatment
High flow filter refers to large-diameter pleated filter cartridges widely applied in industrial ultrafiltration pretreatment. This liquid filter delivers high dirt holding capacity and stable low differential pressure under continuous high-volume raw water operating conditions. Our product portfolio includes Replace 3M 740B Series High-Flow Cartridge and 3M High-flow water filter cartridge to build multi-stage prefiltration skids for raw water treatment. The high flow filter provides reliable upstream membrane protection for municipal water reuse, power, chemical, food and beverage water treatment projects across the globe.
High flow filter is a high-performance wide-diameter pleated filter consumable, designed to serve as the core prefiltration component for industrial ultrafiltration water treatment systems. Mounted on the upstream side of ultrafiltration membrane modules, the primary function of a high flow filter is to capture suspended solids, fine silt, pipeline rust, colloids and granular contaminants from raw water before the fluid enters UF membrane components. By intercepting particulate pollutants in advance, high flow filters effectively reduce membrane fouling risk, extend the service life of high-cost ultrafiltration membrane elements, and decrease the frequency of expensive chemical cleaning cycles for the whole water treatment system.
Compared with conventional small-bore filter cartridges, high flow filter adopts deep pleated wide-diameter structural design, greatly boosting the effective filtration surface area of each single filter. To achieve the identical total system throughput, fewer filter cartridges are required inside filter housings. This structural merit lowers spare parts inventory pressure, speeds up on-site filter replacement procedures, and reduces long-term operational costs for water treatment plant operators and system integrators. When designing full water treatment skids, engineers can match high flow filter with PFTM102UNPFC high flow filter cartridge and Parker MFNP010-40N Mega-Flow Filter to build gradient multi-stage raw water prefiltration.
High flow filter adopts glue-free thermal fusion pleating manufacturing technology. No adhesive is added to the filter medium, eliminating the risk of adhesive dissolution and secondary contamination of process water caused by long-time high-speed water scouring. End caps and internal & external support skeletons are integrally molded from polypropylene, maintaining stable structural integrity under frequent pressure fluctuations and continuous large-volume water flow. The all-polypropylene construction features outstanding chemical compatibility and can tolerate most neutral, weak acid and weak alkaline aqueous solutions. Whether customers need replacement filters for existing ultrafiltration production lines or spare filter consumables for newly commissioned UF equipment, high flow filter can provide consistent and repeatable pretreatment filtration performance for diversified industrial water treatment projects.
High flow filter operates with surface-depth composite pleated filtration mechanism. Raw water enters the filter housing and flows radially inward starting from the outer pleated surface of the filter cartridge. Larger solid particles, rust fragments and sediment are trapped on the outer pleated layer. Fine colloids and tiny suspended particles penetrate into layered polypropylene fiber medium and get intercepted inside dense fiber gaps.
With optimized wide-area pleat layout, trapped pollutants spread evenly across the whole filter medium surface instead of accumulating only on the outer layer. This design slows the rising speed of inlet-outlet differential pressure, maximizes dirt holding capacity and extends the usable running cycle of each filter cartridge. When the pressure difference between filter inlet and outlet reaches the preset threshold value, the filter medium becomes saturated with captured contaminants, and field operators need to install new high flow filter.
High flow filter forms the primary protective barrier for ultrafiltration membranes. Without this upstream prefiltration, raw water carrying solid particles will directly scour UF membrane surfaces. Contaminant deposits block membrane pores and flow channels, accelerate fouling, increase chemical cleaning frequency, and may even trigger irreversible permanent damage to ultrafiltration membranes. When installed in series with PFTM11UEPFB high flow filter cartridge for multi-stage combined filtration, the long-term operational stability of the ultrafiltration system can be greatly improved. It should be noted that high flow filter can only remove solid particulate contaminants and cannot filter dissolved ions, so it functions merely as mechanical prefiltration before ultrafiltration membranes.
| Item | Specification |
|---|---|
| Product Name | High Flow Filter Cartridge |
| Filtration Rating | 1~70 μm nominal, multiple micron grades optional |
| Cartridge Length | 40 inch / 60 inch |
| Filter Media | Pleated reinforced polypropylene |
| Support & End Cap Material | Polypropylene |
| Outer Diameter | 152 mm |
| Inner Diameter | 63 mm |
| Single Filter Rated Flow | 90–140 m³/h |
| Max Operating Temperature | 65 ℃ |
| Max Working Pressure | 1.0 MPa |
| Recommended Replacement Differential Pressure | 0.35 MPa |
| Connection Style | High flow bayonet locking end cap |
| Chemical Compatibility | Compatible with neutral water, weak acid and weak alkaline aqueous fluids |
Every batch of high flow filter undergoes full-process production inspection and finished-product performance testing before shipment. Incoming raw material inspection is performed for polypropylene filter media, support cores and end caps to guarantee stable batch-to-batch consistency. During manufacturing, sampling inspections cover pleating uniformity, thermal bonding strength and sealing performance of end caps.
Finished product tests include bubble point integrity test, cyclic pressure impulse test and water flow pressure drop detection. Defective filters with medium cracks, poor sealing or loose structures will be fully screened out. The glue-free thermal bonding craft removes the risk of adhesive leaching that may contaminate process water. The all-PP material design also avoids metal shedding risk in filtration, making it suitable for sanitary water treatment scenarios.
Products comply with strict industrial filtration quality management standards. Each filter is individually packaged to avoid dust and particle contamination during storage and transportation. Complete technical datasheets are supplied for engineering design, BOM creation and quotation reference. After installation and before system startup, on-site inspection should be performed to confirm filter housing interface matching and sealing integrity.
High flow filter is widely adopted as pretreatment filters for ultrafiltration water treatment systems, and they also apply to a broad range of other industrial liquid filtration scenarios.
Industrial ultrafiltration system pretreatment: Capture sediment, iron oxide scale and suspended particles, protect UF membrane elements, reduce membrane chemical cleaning frequency. Suitable for raw water purification and reclaimed water reuse projects.
Power plant water treatment: Pre-filtration for boiler makeup water and condensate water, removing pipeline rust and suspended particulate pollutants.
Food and beverage industry: Raw water pretreatment for drinking water and beverage production to remove granular impurities.
Chemical industry: Process water filtration and circulating cooling water pretreatment for chemical production lines.
Municipal water supply and reclaimed water reuse: Large-flow raw water prefiltration for municipal water plants and wastewater recycling projects.
Pharmaceutical and cosmetic purified water preparation: Sanitary grade prefiltration for water production equipment.
System designers can configure multi-stage gradient filtration according to raw water turbidity and pollutant composition of each individual project to achieve better overall filtration efficiency.
A: It serves as the upstream pretreatment protective filter for ultrafiltration systems. It intercepts suspended solids, silt and granular contaminants inside raw water, reduces pollutant load on UF membranes, slows membrane fouling, lowers chemical cleaning frequency and extends the service life of ultrafiltration membrane elements.
A: There is no fixed time-based service life. Service cycle depends on raw water turbidity, contaminant concentration and real operating flow rate. It is recommended to replace the filter when inlet-outlet differential pressure reaches 0.35 MPa.
A: It is disposable pleated filter cartridge. Once fiber gaps are saturated with trapped contaminants, backwashing cannot fully restore original filtration performance. Reuse after cleaning brings particle leakage risks, direct replacement is recommended.
A: It fits 40-inch or 60-inch high flow filter housings with bayonet locking interface. Before ordering, verify housing interface dimensions, internal cavity space and pressure bearing rating to avoid installation mismatch.
A: The polypropylene material has a maximum operating temperature of 65℃. It is not recommended for continuous operation above this temperature. Contact our technical team for high-temperature working condition assessment.
A: The required quantity is calculated based on total system flow rate, single-filter rated flow and raw water quality parameters. Calculate according to the technical datasheet and reserve reasonable surplus to cope with raw water quality fluctuations.
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