Product Introduction
The HFU660UY045 is a high-flow, pleated depth filter cartridge. It is designed as a pre-filter or “guard filter” to protect sensitive downstream equipment, such as reverse osmosis (RO) membranes or ultrafiltration (UF) systems, by removing particulate contaminants from water.
Filtration Precision
The standard and most common filtration rating for this model (045) is 5 microns (µm). This model series is also typically available in other standard ratings like 1, 10, 20, and 40 microns.
Flux
This model delivers a very high single-cartridge flow rate. For the standard 20-inch (508mm) length cartridge, the rated flow is approximately 660 liters per minute (LPM), or about 110 cubic meters per hour (m³/h).
Salt Rejection Rate
Not Applicable (N/A). This is a mechanical depth filter cartridge. Its primary function is the physical retention of suspended particles based on size. It does not remove dissolved ions or salts; therefore, it has no salt rejection capability.
Pressure Drop
Initial Pressure Drop: Engineered to be very low due to its large diameter and optimized pleated design, which maximizes surface area for filtration.
Recommended Replacement Pressure Drop: The cartridge should be replaced when the differential pressure across it reaches 2.4 bar (at 20°C).
Molecular Weight Cutoff (MWCO)
Not Applicable (N/A). MWCO is a parameter used for membrane filtration (like UF or NF). This cartridge operates on a micronic rating system (particle size in microns) and does not separate molecules based on weight.
Membrane Thickness
The specific membrane thickness is not a standard published parameter for this pleated filter. The filter media is Polypropylene (PP), arranged in deep pleats to provide extended surface area and high dirt-holding capacity.
Replacement Cycle
The service life is not defined by a fixed time period. Replacement is dictated by the increase in differential pressure caused by accumulated contaminants. The cartridge must be replaced once the differential pressure reaches the maximum allowable limit of 2.4 bar.
Features
Extremely High Single-Cartridge Flow: Significantly reduces the number of housings and overall system footprint.
High Dirt-Holding Capacity: The deep-pleat design provides substantial capacity for particulate retention, extending service life.
Excellent Chemical Compatibility: The PP media is resistant to a wide range of acids, bases, and chemicals.
High Beta Ratio (Filtration Efficiency): For its rated particle size (e.g., 5µm), it achieves a removal efficiency of ≥99.9% (Beta(β)x ≥1000).
Application Fields
This high-flow filter is widely used in industrial and commercial applications requiring large-volume pretreatment, including:
RO/UF Pretreatment (Guard Filtration)
Seawater Desalination Pretreatment
Power Plant Condensate Polishing
Pre-filtration in the Biopharmaceutical, Food & Beverage, and Petrochemical industries.
Conclusion
In summary, the HFU660UY045 (H4W/J) is a high-performance, 5-micron pleated depth filter cartridge. Its core value lies in providing high-flow-rate particulate protection for critical downstream processes. Its large flow capacity and long service life help reduce system complexity and maintenance frequency.
Related Products
Other Filtration Ratings: Same series cartridges like
HFU660UY020J(often 1µm),HFU660UY100J(often 100µm).Alternative Lengths: Available in 10″, 30″, 40″, and 60″ lengths, with flow rates scaling proportionally.
Cross-Reference/Equivalent Models: Compatible alternatives from other major brands, such as Parker’s MFNP050-40N series or 3M’s HF40PP series.


