HFU620UY700J Water Treatment Filter Element Product Specification

Product Introduction

The HFU620UY700J is an ultra-coarse polypropylene (PP) pleated filter cartridge designed for primary filtration in industrial and commercial water treatment systems where large debris removal is the core demand. Manufactured with high-toughness PP non-woven filter media and a lightweight yet sturdy pleated structure, this product specializes in intercepting extra-large suspended solids, gravel, large organic debris, and coarse sediment from water streams. As the first line of defense in water treatment processes, it effectively prevents large particles from entering downstream pipelines and equipment, reducing the risk of blockage, abrasion, and premature failure of precision filters, pumps, and heat exchangers. Its ultra-large pore size and high-flow design make it a cost-efficient solution for raw water intake, construction wastewater treatment, and agricultural irrigation filtration scenarios.

Filtration Precision

The HFU620UY700J features a nominal filtration precision of 700 microns, with a particle capture rate of over 99.5% for contaminants of 700 microns and above. This ultra-coarse filtration grade is optimized for scenarios where rapid removal of bulky, destructive particles is prioritized over fine impurity control. The uniform large-pore distribution of the PP media ensures minimal flow resistance, allowing high water throughput while reliably blocking the largest particles that could cause severe damage to downstream systems.

Flux

Under standard operating conditions (25℃ ambient temperature and 0.2MPa inlet pressure), the HFU620UY700J delivers a stable water flux of 260–300 L/min. Its ultra-large pore size and expanded pleated surface area minimize flow friction and pressure loss, enabling it to handle high-volume water flow without compromising filtration efficiency. This high-flux performance makes it suitable for medium-scale primary water treatment systems, such as factory raw water intake and small municipal water pre-filtration projects.

Salt Rejection Rate

As an ultra-coarse physical filtration cartridge, the HFU620UY700J has no desalination capability. Its salt rejection rate is less than 1%, which means it cannot intercept any dissolved inorganic salts, ions, or small-molecule organic compounds in water. The product’s core function is strictly limited to the separation of large, insoluble particulate impurities, rather than chemical purification, salinity reduction, or water softening processes.

Pressure Drop

The initial pressure drop of the HFU620UY700J is ≤0.008MPa when operating at the rated flux. During prolonged use, the pressure drop will gradually increase as large impurities accumulate on the filter surface. When the pressure drop reaches 0.1MPa, it is recommended to replace the filter cartridge promptly. Delayed replacement may lead to significant flow reduction, pipeline pressure fluctuations, increased energy consumption of upstream pumps, or even pump burnout due to excessive resistance.

Molecular Weight Cutoff (MWCO)

The molecular weight cutoff of the HFU620UY700J is 1,200,000 Dalton. This parameter indicates that the filter cartridge can effectively retain macromolecular substances with a molecular weight of 1,200,000 Dalton and above, including large colloidal aggregates, industrial sludge clumps, and bulky organic debris. Meanwhile, water molecules, dissolved minerals, and small-molecule organic substances can pass through the filter media unimpeded, ensuring maximum flow efficiency and minimizing system energy consumption.

Membrane Thickness

The polypropylene filter membrane of the HFU620UY700J has a thickness of 0.7–0.8 mm. This thickened membrane design enhances the mechanical strength and impact resistance of the cartridge, enabling it to withstand the collision and abrasion of large, hard particles such as gravel and metal scraps in the water. The robust membrane structure effectively prevents rupture or deformation during long-term operation, ensuring consistent filtration performance even in harsh working conditions.

Replacement Cycle

The recommended replacement cycle of the HFU620UY700J is 1–2 months, which varies depending on the actual water turbidity and impurity size of the application site. In extremely high-turbidity water systems (suspended solids content >200mg/L) with a large amount of gravel or construction debris, the replacement cycle should be shortened to 2–3 weeks to avoid severe clogging. In low-turbidity systems (suspended solids content <15mg/L) with only small amounts of large particles, the cycle can be appropriately extended to 2–3 months with regular manual backwashing maintenance.

Features

Ultra-high Efficiency for Large Debris Removal: 700-micron precision captures over 99.5% of bulky particles, providing robust protection for downstream equipment against blockage and abrasion.
High Throughput Capacity: Ultra-large pore size and optimized pleated structure enable a flux of 260–300 L/min, suitable for medium-scale primary filtration systems.
Superior Mechanical Toughness: Thickened PP membrane resists collision and abrasion from large hard particles, ensuring stable performance in harsh working environments.
Excellent Chemical Compatibility: The PP media is resistant to most acids, alkalis, and organic solvents, adapting to complex industrial water quality environments.
Cost-effective Solution: High-purity PP material is economical and durable, providing high cost-performance for ultra-coarse filtration projects with low maintenance budgets.
Easy Installation and Maintenance: Standard interface design is compatible with most industrial filter housings; the cartridge can be quickly replaced without professional tools, reducing system downtime.

Application Fields

Raw Water Intake Pre-filtration: Applied in river, lake, and well water intake systems for factories and small-scale municipal use, removing gravel, large sediment, and floating debris to protect subsequent water treatment equipment.
Construction Site Wastewater Treatment: Suitable for filtering foundation pit water, concrete washing water, and construction drainage, removing large construction debris to meet basic discharge standards or enable water recycling for construction.
Agricultural Irrigation Water Filtration: Used in medium-scale farm irrigation systems, preventing nozzle blockage caused by sand and gravel in irrigation water and ensuring uniform water distribution for crops.
Quarry and Mining Wastewater Primary Filtration: Applied in small quarry and mining wastewater treatment, removing ore particles and rock debris to facilitate subsequent purification processes.
Industrial Circulating Water Pre-filtration: Used in small steel mills, cement plants, and foundries to filter circulating cooling water, removing metal scraps and large dust particles to protect heat exchangers and pumps.
Aquaculture Water Pre-treatment: Suitable for fish pond and aquaculture farm water supply systems, removing large aquatic plants, fish waste, and debris to improve the living environment of aquatic products.

Conclusion

The HFU620UY700J water treatment filter cartridge is a high-value ultra-coarse filtration product that combines high throughput, strong mechanical toughness, and cost-effectiveness. Its 700-micron filtration precision and robust PP pleated structure make it an ideal primary filtration solution for scenarios where large-particle impurity removal is the core demand. As the first barrier in water treatment systems, it effectively eliminates bulky, damaging impurities, reduces the operational burden of downstream precision equipment, extends the service life of the entire water treatment line, and lowers overall maintenance costs. Whether deployed in raw water intake systems, construction wastewater treatment, or agricultural irrigation filtration, the HFU620UY700J delivers stable and reliable performance, creating significant economic value for users.

Replacement HFU620UY700J 700 Micron Polypropylene Filter Cartridge for Commercial & Industrial Raw Water Pre-filtration Applications