Product Introduction
HFU660UY700H4 is a high-performance heavy-duty pleated filter cartridge, specifically engineered for mid-to-high-demand industrial water treatment pre-filtration applications. It adopts a high-density polypropylene (PP) filter medium, paired with a reinforced polypropylene internal support frame and a high-sealing nitrile rubber (NBR) gasket, ensuring structural integrity under continuous operation. With a standard outer diameter of 6 inches (152mm) and available lengths of 20”, 40”, and 60”, the cartridge features a rod-free design to maximize effective filtration area. Manufactured via a full hot-melt welding process, it eliminates adhesive leakage risks and complies with FDA food contact safety standards and ISO 9001 quality management system requirements. This product is dedicated to removing suspended solids, colloidal particles, and large particulate impurities from water, providing reliable protection for downstream equipment such as reverse osmosis (RO) membranes, ultrafiltration modules, and precision pumps.
Filtration Precision
The standard filtration precision of HFU660UY700H4 is 70μm, which can achieve 99.9% interception efficiency for particles of 70μm and above under rated operating conditions. For customized application needs, it can be tailored to precision levels ranging from 1μm to 100μm, covering both fine filtration scenarios for high-purity process water and coarse filtration demands for wastewater pretreatment. This precise grading capability ensures stable filtrate quality across diverse water treatment systems, preventing particulate abrasion and clogging of core downstream equipment.
Flux
Flux is a core performance indicator of HFU660UY700H4. Under standard test conditions (25°C, clean tap water, 1.0 bar operating pressure), the 60-inch length model delivers a flux of 78–98 m³/h; the 40-inch model achieves a flux of 58–68 m³/h; and the 20-inch model provides a flux of 29–34 m³/h. This high-flux performance is attributed to its optimized pleat density (115 pleats per linear foot) and hydrophilic PP filter medium, which reduces flow resistance and improves water permeability. Compared with conventional filter cartridges of the same specification, it can reduce the number of parallel cartridges by 30%, thus saving installation space and system investment costs.
Salt Rejection Rate
As a particulate filtration cartridge, HFU660UY700H4 is not designed for desalination functions, and its salt rejection rate is negligible, generally below 2.5%. 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 particulate contaminants from adhering to the surface of RO membranes or blocking membrane pores, thereby ensuring the stable high salt rejection rate (typically 96–99%) of downstream desalination equipment.
Pressure Drop
The initial pressure drop of HFU660UY700H4 at rated flow and 20°C is only 0.055–0.085 bar, which is lower than that of traditional filter cartridges of the same specification. As the filtration process proceeds and impurities accumulate on the filter medium surface, the pressure drop will gradually rise. The recommended maximum allowable pressure drop for replacement is 2.55 bar. Maintaining a low pressure drop minimizes the energy consumption of system water pumps, reduces pipeline operating pressure, and extends the service life of the entire water treatment system.
Molecular Weight Cutoff (MWCO)
Since HFU660UY700H4 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 180,000–380,000 Daltons, such as large colloidal organic matter, microbial flocs, and polymer additives in water. However, it has no interception effect on small-molecular substances including inorganic salts, monosaccharides, and small-molecular organic acids.
Membrane Thickness
The filter membrane thickness of HFU660UY700H4 is precisely controlled at 0.19–0.23 mm, a balanced design that takes into account filtration efficiency, dirt-holding capacity, and water permeability. The moderate thickness ensures the membrane has sufficient mechanical strength to resist water flow impact and backwashing pressure without deformation or rupture. Additionally, the surface of the filter membrane is treated with a special anti-adhesion coating, which reduces the adhesion of impurities and maintains stable flux during long-term operation.
Replacement Cycle
The replacement cycle of HFU660UY700H4 is determined by raw water turbidity, operating flow rate, and system pressure drop, with significant variability across different application scenarios. In clean industrial process water with turbidity below 4 NTU, the replacement cycle can reach 4.5–6.5 months; in high-turbidity water environments such as municipal wastewater pretreatment or surface water treatment with turbidity above 55 NTU, the cycle needs to be shortened to 1–1.2 months. In addition, once the system pressure drop reaches the recommended replacement threshold of 2.55 bar, the cartridge should be replaced immediately, regardless of the service time, to avoid system efficiency degradation or equipment damage caused by excessive pressure.
Features
- Enhanced structural stability: The reinforced polypropylene internal support frame and full hot-melt welding process enable the cartridge to withstand a maximum operating pressure of 11 bar and a temperature range of 4°C to 82°C, suitable for most industrial working environments.
- Excellent anti-adhesion performance: The anti-adhesion coating on the filter membrane surface reduces impurity adhesion, improves dirt-holding capacity by 22% compared to standard PP cartridges, and extends the service cycle.
- Good chemical compatibility: The filter medium is resistant to most acids, alkalis, and organic solvents, with a pH tolerance range from 2 to 13, adapting to diverse chemical fluid filtration needs.
- Easy installation and maintenance: The standardized 6-inch interface design is compatible with most industrial filter housings, requiring no special tools for installation and replacement, thus saving labor costs and reducing system downtime.
- Environmentally friendly and safe: All materials are free of heavy metals, phthalates, and other toxic additives, can be recycled after use, and meet the environmental protection requirements of industrial production.
- High cost-effectiveness: The high flux and extended service cycle reduce the number of cartridge replacements and system energy consumption, cutting overall operating costs by 22–32% compared to conventional products.
Application Fields
- RO/UF system pre-filtration: Serves as the core pre-treatment component for desalination and ultrafiltration systems in power plants, electronics factories, and chemical plants, protecting downstream membranes from particulate contamination.
- Chemical and petrochemical industry: Filters process fluids such as acids, alkalis, solvents, and crude oil, removing solid impurities to ensure the purity of chemical raw materials and the normal operation of production equipment.
- General manufacturing industry: Pre-filters cooling water, process water, and cleaning water for machinery manufacturing, automobile production, and textile printing and dyeing industries, improving product quality and extending equipment service life.
- Food and beverage industry: Filters drinking water, beverage raw water, and syrup, ensuring product safety and compliance with food hygiene standards.
- Commercial and municipal water supply: Used in the pre-filtration of commercial water purification equipment and municipal tap water treatment, improving water quality and reducing the burden of terminal filtration.
- Wastewater treatment and reuse: Participates in industrial wastewater and municipal sewage treatment processes, removing suspended solids to achieve water resource recycling and meet environmental discharge standards.
Conclusion
In conclusion, HFU660UY700H4 is a high-performance, cost-effective industrial water treatment filter cartridge that integrates the advantages of high flux, low pressure drop, strong structural stability, and good chemical compatibility. Its optimized design addresses the pain points of traditional filter cartridges, such as short service cycles and high energy consumption, making it suitable for a wide range of mid-to-high-demand water treatment scenarios. Whether applied to precision equipment protection in electronics and chemical industries, or water quality improvement in food and beverage and municipal water supply fields, HFU660UY700H4 can provide efficient, stable, and reliable filtration solutions. It is an ideal choice for upgrading industrial water treatment systems and improving water resource utilization efficiency.
Related products
- HFU660UY500H4: A high-precision model with 50μm filtration precision, suitable for scenarios requiring higher filtrate clarity, such as food and beverage process water filtration and pharmaceutical purified water pre-filtration.
- HFU660UY100H4: A 100μm precision model with an ultra-high flux of 108–128 m³/h (60-inch length), designed for large-flow low-turbidity water treatment systems such as power plant cooling tower water filtration.
- HFU620UY700H4: A compact model with a 4.5-inch outer diameter, suitable for small-scale water treatment systems with limited installation space, while retaining the core performance advantages of HFU660UY700H4.
- HFU660GF700H4: A glass fiber filter medium model with high temperature resistance (up to 115°C) and strong chemical corrosion resistance, suitable for high-temperature fluid filtration in petrochemical and chemical industries.
- HAU660UY700H4: A hydrophilic modified model with enhanced anti-fouling performance, which can extend the service cycle by 35% in high-colloid water quality environments such as river water and lake water treatment.
