High Capacity Filter Cartridge for Industrial UF Pretreatment Systems
High Capacity Filter Cartridge is a high-performance consumable to protect industrial ultrafiltration membrane equipment. This liquid filter uses deep pleated polypropylene media to trap suspended solids and reduce UF membrane fouling risk. Our filtration product portfolio includes Parker MFNP005-40N Mega-Flow filter and HFU620UY100JEDF high flow filter cartridge to build multi-stage raw water prefiltration systems. High Capacity Filter Cartridge delivers reliable filtration performance for seawater desalination, power, chemical and industrial wastewater reuse projects worldwide.
Product Introduction
High Capacity Filter Cartridge is a large-diameter filter element engineered for high throughput and high dirt holding capacity, widely applied in the pretreatment stage of industrial ultrafiltration water treatment equipment. Its deep pleated media design greatly expands the effective filtration surface area of a single cartridge, allowing it to handle significantly larger liquid volumes than traditional small-diameter filter cartridges. The standard filter media is virgin polypropylene, with micron ratings ranging from 0.5 micron up to 100 micron to accommodate different raw water turbidity and contaminant compositions. Installed upstream of ultrafiltration membrane modules, High Capacity Filter Cartridge intercepts silt, iron oxide rust, suspended solids and colloidal contaminants before raw water enters costly UF membranes. Timely replacement of this filter element prevents irreversible scratches and pore blockages on membrane surfaces, extends the service life of ultrafiltration membranes, reduces chemical cleaning frequency and lowers the overall system maintenance burden.
The core advantage of High Capacity Filter Cartridge lies in its superior contaminant holding capacity. Densely folded filter media can hold far more intercepted particles before hitting the differential pressure limit, extending service cycles and cutting replacement frequency. Thanks to its large outer diameter design, fewer cartridges need to be fitted inside filter housings. This reduces the footprint of the entire filtration skid, minimizes spare parts inventory costs and simplifies on-site filter replacement work, shortening downtime during maintenance. When designing complete prefiltration schemes, system engineers can combine High Capacity Filter Cartridge with PFTM11UNPFA high flow filter cartridge and HFU640HGF100H1 high flow filter cartridge to construct gradient multi-stage raw water filtration systems.
High Capacity Filter Cartridge adopts glue-free thermal fusion sealing technology. Filter media, inner support core, outer protective skeleton and end caps are thermally integrated into a single unit. This production process removes the risk of adhesive dissolution and secondary liquid contamination under long-term continuous water scouring. Virgin polypropylene raw material delivers excellent chemical inertness and low fiber shedding rate. Whether customers are building brand-new ultrafiltration pretreatment lines or maintaining existing water reuse facilities, High Capacity Filter Cartridge maintains consistent filtration performance and serves as a cost-effective drop-in replacement for many well-known branded high flow filter elements.

Working Principle
High Capacity Filter Cartridge works through the combined mechanism of surface filtration and depth filtration. Raw water flows radially inward from the outer pleated surface of filter media, passing through multi-layer folded fiber webs. Large impurities including sediment and rust deposits are captured on the outer pleated surface. Fine colloids and micro suspended particles penetrate the fiber layers and get trapped inside the gaps of the fiber structure.
The deep pleated structure maximizes usable filtration area for each High Capacity Filter Cartridge, distributing pollutant loads evenly across the whole filter media surface. This slows surface clogging, delays the rise of inlet-outlet differential pressure and improves dirt holding capacity. When the pressure difference reaches the preset threshold, filter media becomes saturated with trapped contaminants, and site operators must shut down the system to replace the High Capacity Filter Cartridge.
This filter cartridge forms the primary protective barrier for ultrafiltration membranes. Without effective upstream prefiltration, fine solid particles in raw water may scratch membrane surfaces, block membrane pores and cause permanent fouling of UF membranes. When used in series with PFTM11UEPFA213 high flow filter cartridge for multi-stage combined filtration, the long-term stable operation of ultrafiltration equipment can be greatly improved. It should be noted that High Capacity Filter Cartridge can only remove solid particulate pollutants. It cannot filter dissolved ions and soluble salts, only providing mechanical prefiltration protection before ultrafiltration membrane units.
Technical Parameters
| Item | Specification |
|---|
| Product Name | High Capacity Filter Cartridge |
| Filter Medium | Pleated virgin Polypropylene |
| Filtration Rating | 0.5~100 μm nominal, multiple micron grades optional |
| Cartridge Length | 40 inch / 60 inch |
| Outer Diameter | 152 mm |
| Inner Diameter | 63 mm |
| Single Cartridge Rated Flow | 70–130 m³/h |
| Max Operating Temperature | 65 ℃ |
| Max Working Pressure | 1.0 MPa |
| Recommended Replacement Differential Pressure | 0.35 MPa |
| End Cap & Support Skeleton | Polypropylene |
| Connection Style | Bayonet locking interface |
| Chemical Compatibility | Neutral water, weak acid and weak alkaline aqueous liquid |
Quality Control
Every batch of High Capacity Filter Cartridge undergoes full-process production inspection and finished-product performance testing before shipment. Raw material inspection is performed for filter media, support cores and end caps to guarantee stable batch-to-batch quality consistency. During manufacturing, sampling inspections cover pleating uniformity, medium tensile strength, thermal sealing integrity and end cap bonding performance.
Finished product tests include bubble point integrity test, cyclic pressure impulse test, flow pressure drop test and particle retention efficiency test. Defective filters with medium cracks, poor sealing or loose structures will be fully screened out. The glue-free thermal fusion sealing eliminates adhesive leaching risk that may contaminate process liquid. The filter medium maintains stable structure and low fiber shedding rate under continuous liquid flushing, which meets the strict water quality requirements of industrial pretreatment projects.
All products comply with strict industrial filtration quality management standards. Each High Capacity Filter Cartridge is individually packaged to avoid dust and particle contamination during storage and transportation. Complete technical datasheets and dimension drawings are supplied for engineering design, spare part BOM creation and quotation reference. Before installation, technicians should inspect the O-ring and filter interface to ensure perfect sealing and prevent bypass leakage.

Application Fields
High Capacity Filter Cartridge is widely used as pretreatment filter element for ultrafiltration water treatment systems, also suitable for various industrial liquid filtration scenarios.
Industrial ultrafiltration system pretreatment: Intercept fine suspended particles, silt and colloids, protect UF membrane elements, reduce membrane fouling and chemical cleaning frequency. Suitable for raw water purification and industrial wastewater reuse projects.
Power plant water treatment: Pre-filtration for boiler feed water and condensate water, removing fine suspended particulate impurities.
Seawater desalination industry: Prefiltration protection for ultrafiltration units in desalination plants.
Chemical industry: Process liquid filtration and circulating cooling water pretreatment for chemical production lines.
Municipal water reuse: Large-flow raw water prefiltration for municipal wastewater recycling plants.
Oil & gas produced water treatment: Pre-filter solid impurities before ultrafiltration of oilfield produced water.
System designers can configure multi-stage gradient filtration scheme according to raw water pollutant composition and turbidity of each individual project to optimize overall filtration efficiency.
FAQ
Q1: What is High Capacity Filter Cartridge?
A: High Capacity Filter Cartridge is a large-diameter pleated filter element designed for high dirt-holding liquid prefiltration, mainly for ultrafiltration pretreatment to protect UF membrane modules.
Q2: What are the main benefits of high capacity filter cartridge?
A: It provides larger filtration area, higher dirt holding capacity, extended service cycle, reduces the quantity of filters inside filter vessels and lowers on-site maintenance costs.
Q3: How to confirm the replacement time of High Capacity Filter Cartridge?
A: Replace the cartridge when inlet-outlet differential pressure reaches 0.35 MPa, or filtrate turbidity rises obviously. Service life depends on raw water quality rather than fixed time.
Q4: What micron options are available for High Capacity Filter Cartridge?
A: It offers nominal filtration ratings from 0.5μm to 100μm. The 5μm and 10μm grades are the most popular options for ultrafiltration pretreatment.
Q5: Can High Capacity Filter Cartridge replace famous brand high flow filter cartridges?
A: Yes. Our drop-in compatible high capacity filter cartridge matches dimensions, bayonet interface and filtration performance as economical replacement options.
Q6: Can High Capacity Filter Cartridge be cleaned and reused repeatedly?
A: It belongs to disposable filter consumable. After filter media is saturated with contaminants, backwashing cannot restore its original filtration performance, so replacement is recommended.
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