
Technical Data Sheet: Pall HFU660UY200J High-Flow Pleated Water Filter Cartridge
Product Introduction
The Pall HFU660UY200J is a high-flow, pleated depth filter cartridge engineered for large-scale industrial water pretreatment. It is designed as a high-capacity single element to protect sensitive and costly downstream equipment, such as reverse osmosis (RO) membranes, by efficiently removing particulate contaminants. The model code “HFU” stands for High Flow Unit, “660” indicates a 6-inch diameter and 60-inch (1524mm) length, and “UY” refers to its specific pleat geometry. It serves as a critical guard filter in systems requiring high throughput and extended service life.
Filtration Precision
The suffix “J” in the model name is a key identifier for its filtration rating. In Pall’s standard coding system for this series, the “J” suffix typically denotes a filtration precision of 2 to 3 microns (absolute). This makes it highly effective for capturing fine silt, scale, and other sub-visible particles.
Flux
This cartridge is characterized by an exceptionally high single-element flow capacity. Performance data for the 60-inch length shows it can support flow rates up to 204 gallons per minute per pressure differential (gpm/psid), equivalent to approximately 772 liters per minute at 70 millibars. Its design allows for significant system flow with a minimal number of filter housings.
Salt Rejection Rate
Not Applicable (N/A). This is a mechanical depth filter cartridge. It operates on the principle of physical particle size exclusion and does not remove dissolved salts, ions, or minerals from water. Salt rejection is a function of membrane processes like Reverse Osmosis (RO) and Nanofiltration (NF).
Pressure Drop
The hydraulic design prioritizes high flow with minimal resistance. Key pressure parameters are:
Initial Pressure Drop: Very low, typically around 0.02 MPa for a clean element.
Recommended Replacement Pressure Drop: 2.4 Bar. This is the differential pressure across the loaded cartridge that signals the need for replacement.
Maximum Allowable Pressure Drop: 3.5 Bar.
Molecular Weight Cutoff (MWCO)
Not Applicable (N/A). MWCO is a specific parameter for molecular separation membranes (e.g., Ultrafiltration). This pleated cartridge filters based on micron-sized particles and has no defined MWCO.
Membrane Thickness
Not Applicable (N/A). This product is not a membrane. It utilizes a pleated depth filter media, commonly made from polypropylene (PP). Filtration occurs throughout the entire depth of this thick media layer, not via a thin selective skin.
Replacement Cycle
The service life is condition-based, not time-based. Replacement is required when the differential pressure reaches the 2.4 Bar threshold. The actual cycle depends entirely on the particulate load of the inlet water.
Features
High Dirt Holding Capacity: The advanced pleat design provides a large filtration area, maximizing the amount of contaminant the cartridge can retain before replacement.
High Flow, Low Pressure Drop: The 6-inch diameter and optimized pleat geometry enable very high flow rates while maintaining low initial and operating pressure drops, saving energy.
Cost-Effective System Design: A single HFU660 cartridge can replace multiple standard 2.5-inch cartridges, reducing the number of housings, connections, and labor for change-outs.
Robust, Sanitary Construction: Features all-polypropylene construction with thermally bonded ends to prevent media migration and ensure no adhesive-related contamination.
Material Compatibility: Polypropylene media offers broad chemical compatibility within specified pH and temperature ranges.
Application Fields
This filter is a versatile pre-filter across industries requiring reliable particulate removal:
Reverse Osmosis (RO) Pretreatment: Essential guard filtration to prevent membrane fouling.
Power Generation: Condensate polishing and feedwater filtration.
Desalination Plants: Pre-filtration for seawater reverse osmosis (SWRO) systems.
Pharmaceutical & Biotech: Pretreatment for Purified Water and Water for Injection (WFI) systems.
Microelectronics: Pre-filtration in ultrapure water (UPW) production.
General Industrial Water: Protection for process water systems in chemical, food & beverage, and metallurgical operations.
Conclusion
The Pall HFU660UY200J is a high-performance, large-flow depth filter cartridge designed for efficiency and reliability. Its 2-3 micron precision, exceptional dirt-loading capability, and high-flow design make it an outstanding choice for reducing operational costs and protecting critical downstream assets in demanding industrial water pretreatment applications.
Related Products
Other Precision Ratings:
HFU660UY200H1(1-micron),HFU660UY200H4(5-micron),HFU660UY200H13(typically 1-micron) for varying filtration needs.Other Lengths in the “J” Series:
HFU620UY200J(20-inch) andHFU640UY200J(40-inch) for different system space constraints.Different Media Types: The
HFU660GF...series, which uses glass fiber media for different performance characteristics.Third-Party Equivalents: Compatible replacement cartridges from other manufacturers designed to meet the same performance and dimensional specifications as the Pall original.

