Product Introduction
The HFU660UY200H4 is a high-flow, single open-end pleated filter cartridge engineered for heavy-duty industrial water pretreatment. It is part of Pall Corporation’s renowned HFU series. The model code reveals its key attributes: “HFU” stands for High Flow Unit, “660” indicates a 6-inch diameter and 60-inch (1524mm) length, and it features the UY pleat geometry. It is designed as a depth filtration solution to protect sensitive downstream equipment by providing high dirt-holding capacity with minimal pressure drop.
Filtration Precision
The suffix “H4” in the model name specifically denotes its filtration rating. In the Pall HFU series coding system, “H4” universally indicates a 5-micron (absolute or nominal) filtration precision. This rating is optimized for capturing fine particulate matter commonly found in industrial water sources.
Flux
Engineered for maximum throughput, a single HFU660UY200H4 cartridge can support exceptionally high flow rates. Typical performance data shows it can handle up to 204 gallons per minute per pressure differential (gpm/psid), which translates to approximately 772 liters per minute at 70 millibars. The design ensures stable, high-volume flow suitable for large-scale systems.
Salt Rejection Rate
Not Applicable. This is a critical distinction. The HFU660UY200H4 is a mechanical, pleated depth filter. Its function is solely the physical removal of suspended particles (like sediment, rust, and silt) based on size exclusion. It does not alter the dissolved ionic content of water and possesses zero capability to reject dissolved salts, minerals, or ions. This function is reserved for membrane processes like Reverse Osmosis (RO).
Pressure Drop
A hallmark of this series is its optimized hydraulics. The initial pressure drop for a clean cartridge is very low, typically around 0.02 MPa (0.3 psi). The cartridge is designed to be replaced when the differential pressure across it reaches the recommended 2.4 Bar (35 psi). The maximum allowable pressure drop is 3.5 Bar (51 psi).
Molecular Weight Cutoff (MWCO)
Not Applicable. MWCO is a parameter exclusive to molecular separation technologies such as Ultrafiltration (UF) and Nanofiltration (NF), which separate solutes based on molecular weight. This pleated cartridge operates purely on mechanical particle size exclusion and has no defined MWCO.
Membrane Thickness
This product is not a membrane element. It uses a pleated depth filter media, typically made from polypropylene (PP) or glass fiber. The filtration occurs throughout the entire thickness of this pleated media bed, which provides its high dirt-holding capacity. There is no “thin-film” membrane layer.
Replacement Cycle
The service life is not time-based but condition-based. Replacement is triggered when the cartridge becomes loaded with contaminants, as indicated by the system’s differential pressure reaching the 2.4 Bar set point. The actual cycle varies significantly with influent water quality and system flow rate, ranging from weeks to several months in well-pre-treated systems.
Features
High Dirt Holding Capacity: The proprietary crescent or geometric pleat design maximizes the available filtration area and media volume, allowing it to trap a large amount of contaminant before requiring replacement.
High Flow, Low Pressure Drop: The large 6-inch diameter and efficient pleat design minimize flow resistance, enabling high throughput with low energy consumption.
Cost-Effective Operation: The extended service life reduces change-out frequency, labor costs, and disposal costs. Fewer cartridges are needed per housing compared to standard-sized filters.
Robust Construction: Features all-polypropylene construction with thermally bonded ends to prevent media migration and ensure sanitary operation. The “UY” variant often indicates a cage-less design.
Material Compatibility: The polypropylene media is compatible with a wide range of chemicals within defined pH and temperature limits.
Application Fields
This cartridge is a workhorse in industrial pre-filtration across numerous sectors:
Power Generation: Condensate polishing and feedwater pre-filtration.
Desalination & RO Pretreatment: Critical protection for RO membranes from particulate fouling.
Microelectronics: Pre-filtration for ultrapure water (UPW) production loops.
Pharmaceutical & Biotech: Process water and utility water pretreatment.
General Industry: Pre-filtration for chemical process water, oil & gas injection water, and food & beverage applications.
Conclusion
The Pall HFU660UY200H4 is a premium, high-capacity depth filter cartridge designed for reliability and cost-efficiency in demanding industrial water pretreatment. Its 5-micron precision, exceptional flow performance, and high dirt-loading characteristics make it an ideal choice for extending the life and protecting the performance of downstream purification equipment, thereby reducing overall system operating costs.
Related Products
Other Precision Ratings in the 60″ Length:
HFU660UY200H1(1-micron),HFU660UY200H13/H13W(likely 0.45/1-micron),HFU660UY200J(2-micron).Other Lengths in the H4 (5-micron) Precision:
HFU620UY200H4(20-inch),HFU640UY200H4(40-inch).Different Media Types:
HFU660GF...series (Glass Fiber media) for different adsorption characteristics.Caged Versions: Some series variants may include an internal support cage for applications with potential high differential pressure spikes or to provide structural support in long-length cartridges.
