Product Introduction
The Pall HFU660UY200HW is a high-flow, pleated depth filter cartridge designed for large-scale industrial water pretreatment applications. It is part of Pall’s HFU series, engineered to replace multiple standard-sized cartridges, thereby reducing system footprint and operational costs. The model designation decodes as follows: HFU indicates High Flow Unit, 660 denotes a 6-inch (152.4mm) diameter and 60-inch (1524mm) length, UY refers to the specific pleat geometry and structure, and 200 is a series identifier. As a mechanical depth filter, its primary function is to remove suspended solids and particulate matter to protect sensitive downstream equipment such as reverse osmosis (RO) membranes and ion exchange resins.
Filtration Precision
The “HW” suffix in the model number indicates a specific filtration grade within the series. While the exact micron rating for “HW” is not explicitly detailed in the available public specifications, the HFU series is commonly available in a wide range of standard absolute precision ratings, including 1, 5, 10, 20, and 40 microns. For the precise absolute micron rating of the HW variant, consultation with the manufacturer’s official data sheet or an authorized distributor is essential.
Flux
This cartridge is characterized by an exceptionally high single-element flow capacity. For the 60-inch (1524mm) length, the maximum flow rate can reach up to 204 gallons per minute per pressure differential (gpm/psid), which is equivalent to approximately 772 liters per minute at 70 millibars. This high flux significantly reduces the number of filter housings required for a given system flow rate, leading to lower capital and installation costs.
Salt Rejection Rate
Not Applicable (N/A). The HFU660UY200HW is a depth filter, not a semi-permeable membrane. It operates on the principle of mechanical size exclusion for particles and does not remove dissolved ions or salts from water. Salt rejection is a property of membrane processes like Reverse Osmosis (RO) and Nanofiltration (NF).
Pressure Drop
The cartridge is designed for high flow with minimal initial flow resistance. Key pressure drop parameters for the series are:
Initial Pressure Drop: Approximately 0.02 MPa for a clean element.
Recommended Replacement Pressure Drop: 2.4 Bar. This is the differential pressure across the cartridge at which it should be replaced, indicating it is fully loaded with contaminants.
Maximum Allowable Pressure Drop: 3.5 Bar.
Molecular Weight Cutoff (MWCO)
Not Applicable (N/A). MWCO is a defining parameter for ultrafiltration (UF) and other molecular separation membranes, describing the smallest molecular weight of a solute that is 90% retained by the membrane. As a micron-rated particulate filter, the HFU660UY200HW does not have an MWCO specification.
Membrane Thickness
Not Applicable (N/A). This product does not incorporate a thin-film composite or polymeric “membrane.” Its filtration is performed by a thick, pleated depth filter media, typically made from polypropylene (PP) or glass fiber. The filtration occurs throughout the entire depth of this media, which provides its high dirt-holding capacity.
Replacement Cycle
The service life is not defined by a fixed time period but is condition-based. The cartridge should be replaced when the differential pressure across it reaches the recommended 2.4 Bar threshold. The actual replacement frequency is directly dependent on the quality of the inlet water and the system’s operating hours.
Features
High Dirt Holding Capacity: The proprietary crescent or geometric pleat design provides a large filtration surface area, allowing it to retain a significant volume of particulate matter before requiring replacement.
Cost-Effective System Design: High single-cartridge flow reduces the total number of filter housings and elements needed, lowering initial investment and ongoing maintenance labor.
All-Polypropylene Construction: The filter media, support core, and end caps are often made from polypropylene, which is thermally bonded to prevent media migration and ensure no secondary contamination from adhesives.
Structural Design: The “UY” designation typically indicates a robust, cage-less pleated construction, though some variants may include a PP support skeleton for high differential pressure applications.
Standardized Sealing: Features a U-shaped gasket groove for reliable sealing and is available with various gasket materials (e.g., EPDM, Nitrile) for fluid compatibility.
Application Fields
This high-flow filter is extensively used as a pre-filter or “guard filter” in major industrial processes:
Water Purification: Pre-filtration for RO systems, ultrafiltration (UF) systems, and seawater desalination pretreatment.
Power Generation: Filtration of power plant condensate water.
Pharmaceutical & Biotechnology: Pretreatment of purified water, water for injection (WFI), and process fluids.
Microelectronics: Pre-filtration for high-purity water systems.
General Industry: Pre-treatment of process water in petrochemical, metallurgical, food and beverage, and paint production applications.
Conclusion
The Pall HFU660UY200HW is a high-capacity, high-flow depth filter cartridge engineered for reliability and operational efficiency in demanding industrial water pretreatment. Its primary value lies in protecting costly downstream process equipment from particulate fouling while reducing overall system complexity and lifetime costs through extended service intervals and a reduced cartridge count.
Related Products
Different Lengths:
HFU620UY200HW(20-inch),HFU640UY200HW(40-inch) for varying system footprint and flow requirements.Different Media:
HFU660GF...series, which utilizes glass fiber media for different adsorption characteristics.Other Precision Ratings in HFU660 Series: Models with suffixes like
H1(likely 1µm),H4(5µm),J(commonly 1-3µm), orH13(commonly 1µm) to suit different pre-filtration needs.Alternative Brands: Compatible replacement cartridges from third-party manufacturers designed to the same dimensional and performance specifications.
