Product Introduction
HFU640UY045H13 is a heavy-duty high-flow H13-grade pleated filter cartridge, engineered for large-scale industrial water treatment and critical fluid pre-filtration scenarios. It adopts polypropylene (PP) as the core filter medium, paired with a corrosion-resistant reinforced PP inner support frame and a high-seal PTFE gasket to ensure structural stability under high-pressure and high-flow operating conditions. With a standard outer diameter of 4.5 inches (114mm) and optional lengths of 20”, 40”, and 60”, the cartridge features an optimized high-density pleat design that maximizes effective filtration area while minimizing flow resistance. Manufactured via cleanroom-grade hot-melt welding, it eliminates adhesive residue and particle shedding risks, complying with FDA food contact standards, ISO 9001 quality requirements, and industrial hygiene norms. This product is dedicated to removing fine suspended solids, colloidal particles, and microbial contaminants from large-flow water systems, providing robust protection for downstream critical equipment such as reverse osmosis (RO) membrane arrays, ultrafiltration (UF) modules, and industrial heat exchangers.
Filtration Precision
The standard filtration precision of HFU640UY045H13 is 45μm, and as an H13-grade filter cartridge, it achieves 99.97% interception efficiency for particles of 45μm and above under rated operating conditions. For customized application needs, it can be tailored to precision levels ranging from 20μm to 50μm, covering coarse-to-fine filtration demands for industrial process water and wastewater pretreatment. This precise grading capability ensures consistent filtrate quality across diverse large-flow water treatment systems, preventing particulate abrasion, scaling, and clogging of core downstream components, especially in harsh industrial environments.
Flux
Flux is a core competitive advantage of HFU640UY045H13, optimized for high-throughput industrial systems. Under standard test conditions (25°C, clean water, 1.2 bar operating pressure), the 60-inch length model delivers an ultra-high flux of 40–50 m³/h; the 40-inch model achieves 28–36 m³/h; and the 20-inch model provides 14–18 m³/h. This superior flux performance stems from its hydrophilic PP membrane and optimized pleat density (100 pleats per linear foot), which reduces flow resistance while retaining H13-grade filtration efficiency. Compared with conventional 45μm filter cartridges of the same size, it improves water throughput by 25% without compromising performance, significantly reducing the number of parallel cartridges required and saving installation space in large-scale systems.
Salt Rejection Rate
As a particulate H13-grade microfiltration cartridge, HFU640UY045H13 is not designed for desalination functions, so its salt rejection rate is negligible, generally below 1.5%. Its core function is to remove physical impurities rather than dissolved ionic substances in water. In integrated water treatment systems, it serves as a critical pre-treatment component, preventing fine colloidal particles, microbial flocs, and suspended solids from adhering to the surface of RO membranes or blocking membrane pores. This protection ensures the stable high salt rejection rate (97–99.5%) of downstream desalination equipment, extending their service life and maintaining system efficiency.
Pressure Drop
The initial pressure drop of HFU640UY045H13 at rated flow and 20°C is only 0.04–0.06 bar, which is 22% lower than that of traditional H13-grade filter cartridges of the same specification. As the filtration process proceeds and impurities accumulate on the membrane surface, the pressure drop will gradually rise. The recommended maximum allowable pressure drop for replacement is 2.0 bar. Maintaining a low pressure drop minimizes the energy consumption of system water pumps, reduces pipeline operating stress, and extends the service life of the entire water treatment system, contributing to overall operational cost savings.
Molecular Weight Cutoff (MWCO)
Since HFU640UY045H13 relies on particle size-based filtration rather than molecular separation, its molecular weight cutoff (MWCO) is not a core technical parameter and lacks precise calibration. In practical applications, it can roughly intercept macromolecular substances with a molecular weight of 180,000–280,000 Daltons, such as large colloidal organic matter, microbial aggregates, and polymer additives in industrial water. However, it has no interception effect on small-molecular substances including inorganic salts, monosaccharides, and small-molecular organic acids, which require downstream RO or nanofiltration processes for removal.
Membrane Thickness
The polypropylene filter membrane thickness of HFU640UY045H13 is precisely controlled at 0.12–0.16 mm, a balanced design that integrates filtration efficiency, dirt-holding capacity, and water permeability. The moderate thickness ensures the membrane has sufficient mechanical strength to resist high water flow impact and backwashing pressure without deformation or rupture, even in continuous industrial operation. Additionally, the membrane’s hydrophilic surface reduces the adhesion of hydrophobic impurities, improves dirt-holding capacity, and maintains stable flux during long-term use, reducing the frequency of cartridge replacement.
Replacement Cycle
The replacement cycle of HFU640UY045H13 is determined by raw water turbidity, operating flow rate, and system pressure drop, with significant variability across different application scenarios. In relatively clean industrial process water with turbidity below 3 NTU, the replacement cycle can reach 4–6 months; in medium-turbidity environments such as chemical plant process water or power plant cooling water (turbidity above 20 NTU), the cycle shortens to 0.7–1.3 months. In addition, once the system pressure drop reaches the recommended 2.0 bar threshold, the cartridge should be replaced immediately, regardless of service time, to avoid system efficiency degradation, increased energy consumption, or damage to downstream equipment.
Features
- H13-grade high efficiency: Achieves 99.97% interception of 45μm particles, ensuring reliable removal of impurities and robust protection for downstream precision equipment in industrial settings.
- Superior high-flow performance: 4.5-inch diameter and optimized pleat design deliver exceptional flux, suitable for large-scale industrial water treatment systems and reducing parallel cartridge requirements.
- Enhanced structural durability: Reinforced PP support frame and precision hot-melt welding enable the cartridge to withstand a maximum operating pressure of 8 bar and a temperature range of 4°C to 85°C, adapting to harsh industrial conditions.
- Broad chemical compatibility: PP filter medium resists most acids, alkalis, and organic solvents, with a pH tolerance range of 2–13, making it suitable for diverse chemical fluid filtration scenarios.
- Low particle shedding: Cleanroom manufacturing process minimizes fiber and particle shedding, meeting the high-purity requirements of pharmaceutical, electronics, and food industries.
- Easy installation & maintenance: Standardized 4.5-inch interface fits most large-flow industrial filter housings, requiring no special tools for replacement, reducing labor costs and system downtime.
Application Fields
- Chemical industry fluid filtration: Filters process water, chemical solvents, and raw materials, removing suspended solids to ensure product quality and protect production equipment from wear and clogging.
- Power plant cooling water treatment: Serves as pre-treatment for cooling tower water and boiler feedwater, removing particles to prevent heat exchanger scaling, corrosion, and efficiency loss.
- Petrochemical industry pre-filtration: Filters crude oil, refined products, and process water, removing impurities to maintain the normal operation of pumps, valves, and membranes.
- Municipal wastewater treatment: Participates in advanced pretreatment of municipal sewage, removing fine suspended solids to improve subsequent treatment efficiency and meet discharge standards.
- Food and beverage processing: Filters large-volume raw water, edible oils, and dairy products, complying with food safety standards and ensuring product clarity and hygiene.
- Mining industry water treatment: Filters mine wastewater and process water, removing solid particles to reduce equipment wear, meet environmental regulations, and enable water reuse.
Conclusion
In conclusion, HFU640UY045H13 is a high-performance, reliable heavy-duty H13-grade filter cartridge that integrates H13-level filtration efficiency, ultra-high flux, and enhanced durability. Its polypropylene membrane, optimized 4.5-inch design, and robust structure address the pain points of traditional industrial filter cartridges—such as low flow capacity, poor chemical resistance, and short service life—making it ideal for large-scale industrial water treatment and critical fluid pre-filtration scenarios. Whether applied to chemical process water filtration, power plant cooling water treatment, or petrochemical industry pre-filtration, HFU640UY045H13 delivers efficient, stable, and cost-effective filtration solutions. It is an excellent choice for upgrading large-flow industrial water treatment systems, improving operational efficiency, and reducing overall maintenance costs.
Related products
- HFU640UY020H13: A 20μm high-precision H13 model, suitable for ultra-fine filtration in semiconductor ultra-pure water treatment and pharmaceutical injection water pre-treatment.
- HFU640UY050H13: A 50μm coarse-filtration H13 model, designed for high-turbidity industrial wastewater pretreatment and mining industry water filtration.
- HFU660UY045H13: A 6-inch mega-flow counterpart, delivering higher flux (60–70 m³/h for 60-inch length) for large-scale water treatment plants with unlimited installation space.
- HFU640UY045H14: An H14-grade upgrade model with 99.995% interception efficiency, ideal for ultra-high-purity water scenarios like biopharmaceutical production.
- HFU620UY045H13: A 2.5-inch compact model, suitable for medium-flow industrial systems and space-constrained precision filtration scenarios, retaining H13-grade efficiency.
