HFU660UY700H4W Water Treatment Product Detailed Description

Product Introduction

HFU660UY700H4W is a premium hydrophilic modified pleated filter cartridge, engineered for high-efficiency industrial water treatment and critical fluid pre-filtration scenarios. It integrates a composite filter medium of hydrophilic polypropylene (PP) and borosilicate glass fiber, paired with a corrosion-resistant 304 stainless steel internal support frame and a high-seal PTFE gasket. Boasting a 6-inch (152mm) outer diameter and optional lengths of 20”, 40”, and 60”, this cartridge adopts a rod-free pleat structure to maximize effective filtration area while minimizing flow resistance. Produced via precision ultrasonic welding, it eliminates adhesive residue risks and complies with strict international standards including FDA, NSF/ANSI 61, and GMP. This product is dedicated to removing suspended solids, colloidal particles, and microbial aggregates from water, delivering reliable protection for downstream precision equipment such as reverse osmosis (RO) membranes, ultrafiltration (UF) modules, and ion exchange resins in harsh working environments.

Filtration Precision

The standard filtration precision of HFU660UY700H4W is 70μm, achieving 99.99% 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 0.5μm to 100μm, covering ultra-fine filtration demands for high-purity water and coarse filtration requirements for wastewater pretreatment. This precise grading capability ensures consistent filtrate quality across diverse water treatment systems, preventing particulate abrasion and clogging of core downstream equipment.

Flux

Flux is a core competitive advantage of HFU660UY700H4W. Under standard test conditions (25°C, clean water, 1.0 bar operating pressure), the 60-inch length model delivers an ultra-high flux of 82–102 m³/h; the 40-inch model achieves a flux of 62–72 m³/h; and the 20-inch model provides a flux of 31–37 m³/h. This superior flux performance stems from its hydrophilic modified filter medium and optimized pleat density (125 pleats per linear foot), which reduces the number of parallel cartridges required in large-flow systems by 38% compared to conventional products, significantly saving installation space and system investment costs.

Salt Rejection Rate

As a particulate filtration cartridge, HFU660UY700H4W is not designed for desalination functions, so its salt rejection rate is extremely low, generally below 1.5%. Its core role is to remove physical impurities rather than dissolved ionic substances in water. In integrated water treatment systems, it acts as a critical pre-protection component, preventing particulate contaminants from adhering to RO membrane surfaces or blocking membrane pores, thereby ensuring the stable high salt rejection rate (97–99.5%) of downstream desalination equipment.

Pressure Drop

The initial pressure drop of HFU660UY700H4W at rated flow and 20°C is as low as 0.045–0.075 bar, which is 22% lower than that of standard 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 2.6 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 HFU660UY700H4W 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 220,000–420,000 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 HFU660UY700H4W is precisely controlled at 0.20–0.24 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 hydrophilic modified coating on the membrane surface reduces the adhesion of hydrophobic impurities, improves dirt-holding capacity, and maintains stable flux during long-term continuous operation.

Replacement Cycle

The replacement cycle of HFU660UY700H4W is determined by raw water turbidity, operating flow rate, and system pressure drop, with significant variability across different application scenarios. In ultra-clean industrial process water with turbidity below 3 NTU, the replacement cycle can reach 5.5–7.5 months; in high-turbidity water environments such as municipal wastewater pretreatment or surface water treatment with turbidity above 65 NTU, the cycle needs to be shortened to 0.6–1.1 months. In addition, once the system pressure drop reaches the recommended replacement threshold of 2.6 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

Superior structural robustness: The 304 stainless steel support frame and ultrasonic welding process enable the cartridge to withstand a maximum operating pressure of 13 bar and a temperature range of 4°C to 88°C, suitable for extreme working environments such as high-temperature chemical fluid filtration.
Enhanced anti-fouling performance: The hydrophilic modified composite filter medium reduces impurity adhesion by 28% compared to standard PP cartridges, significantly improving dirt-holding capacity and extending the service cycle.
Exceptional chemical compatibility: The filter medium is resistant to most strong acids, strong alkalis, and organic solvents, with a pH tolerance range from 1 to 14, adapting to the most demanding chemical fluid filtration needs.
Tool-free installation and maintenance: The standardized 6-inch interface design with a quick-lock structure is compatible with most industrial filter housings, requiring no special tools for installation and replacement, thus saving labor costs and reducing system downtime.
Food-grade and pharmaceutical-grade safety: All materials are free of heavy metals, phthalates, and other toxic additives, compliant with food contact safety standards and GMP certification requirements, suitable for pharmaceutical and food and beverage industry applications.
High cost-effectiveness: The ultra-high flux and extended service cycle reduce the number of cartridge replacements and system energy consumption, cutting overall operating costs by 24–34% compared to conventional products.

Application Fields

High-purity RO/UF system pre-filtration: Serves as the core pre-treatment component for desalination and ultrafiltration systems in semiconductor factories, seawater desalination plants, and pharmaceutical purified water systems, protecting downstream membranes from particulate contamination.
Special chemical and petrochemical industry: Filters corrosive process fluids such as strong acids, strong alkalis, and organic solvents, removing solid impurities to ensure the purity of chemical raw materials and the normal operation of production equipment.
Semiconductor and microelectronics manufacturing: Pre-filters ultra-pure water for chip etching and cleaning processes, meeting the strict particle control requirements of the microelectronics industry.
Pharmaceutical and biotechnology industry: Used in the pre-filtration of pharmaceutical injection water, biopharmaceutical process fluids, and vaccine production raw water, complying with GMP and FDA certification standards.
Food and beverage industry: Filters high-purity water for beverage production, dairy product processing, and wine brewing, ensuring product safety and compliance with food hygiene regulations.
Advanced wastewater treatment and reuse: Participates in zero-discharge treatment processes of industrial wastewater and municipal sewage, removing suspended solids to achieve high-standard water resource recycling and meet the strictest environmental discharge standards.

Conclusion

In conclusion, HFU660UY700H4W is a high-performance, high-reliability industrial water treatment filter cartridge that integrates the advantages of ultra-high flux, ultra-low pressure drop, strong structural robustness, and superior chemical compatibility. Its hydrophilic modified composite filter medium and precision ultrasonic welding process address the pain points of traditional filter cartridges, such as poor anti-fouling performance, short service cycles, and limited chemical resistance, making it suitable for the most demanding water treatment scenarios. Whether applied to precision equipment protection in high-end industries like semiconductors and pharmaceuticals, or large-flow wastewater pretreatment in chemical and petrochemical industries, HFU660UY700H4W can provide efficient, stable, and cost-effective filtration solutions. It is an ideal choice for upgrading high-end industrial water treatment systems, improving water resource utilization efficiency, and reducing environmental footprint.

HFU660UY700H4W High-Efficiency Hydrophilic Filter Cartridge – 70μm Pre-Filtration for Industrial Fluid Purification & Downstream Equipment Safeguard