Pall HFU660UY020J – Ultipleat High Flow Pleated Filter Cartridge
Pall HFU660UY020J is a coreless wide-diameter filter cartridge from Pall Ultipleat HFU series, widely utilized in industrial raw water pretreatment and RO membrane security filtration systems. Our interchangeable aftermarket HFU660UY020J precisely replicates original crescent pleat layout, single open-end structure, integrated lifting handle and J-type sealing dimensions, supporting direct plug-and-play installation inside standard Pall high flow filter housings without equipment modification. Constructed with gradient polypropylene pleated media, this replacement cartridge delivers stable high flow performance, reliable 20μm particle retention and excellent dirt holding capacity. Numerous water treatment EPC partners match HFU640UY700H13W filter cartridge and HFU660GF060H13 glass fiber element with HFU660UY020J alternatives to build systematic multi-stage water purification workflows.

Product Overview
Pall HFU660UY020J adopts the classic Ultipleat core-free 6-inch wide diameter pleated design with inside-out flow direction. The optimized crescent pleat structure greatly expands effective filtration surface area. As a 60-inch long high flow cartridge with 20μm filtration grade, it is commonly deployed in seawater desalination, power station and municipal water treatment projects. Adopting this long-size cartridge helps reduce the total quantity of filter cartridges and lowers overall investment of filter vessels. Nevertheless, high procurement cost and lengthy delivery lead time of genuine Pall HFU660UY020J bring budget pressure and project delay risks for plant operators and engineering contractors. Our factory manufactures fully interchangeable replacement cartridges to reach equivalent filtration technical indicators with competitive cost and shorter delivery cycle.
Core specifications of HFU660UY020J: 6 inch outer diameter, 60 inch nominal length, 20μm filtration rating, UY gradient polypropylene media, J-type seal. End caps, drainage support layers and outer protective wrap are made of reinforced polypropylene materials, manufactured by thermal fusion without adhesive bonding, effectively preventing fiber shedding and secondary contamination to process water. The maximum continuous operating temperature reaches 82°C, maximum allowable differential pressure up to 3.4 bar, suitable for 24/7 uninterrupted industrial operation.
Every batch of HFU660UY020J cartridges undergoes dimensional tolerance inspection, bubble point efficiency testing and pressure tightness verification to guarantee seamless interchangeability. It efficiently intercepts suspended solids, pipeline rust, sediment and coarse colloids, mitigating RO membrane fouling risks and providing reliable protection for downstream membrane modules, water pumps and precision regulating valves.
Filtration Working Principle
Pall HFU660UY020J follows the proven inside-out filtration flow path. Driven by system operating pressure, raw water enters the inner cavity of the coreless filter cartridge and permeates outward through multi-layer gradient pleated media. Coarse sediment and large flocs are trapped on inner pleated layers, while fine particles and colloids that easily trigger membrane pollution are deeply intercepted by outer precision media layers.
Optimized crescent pleat arrangement reduces fluid dead zones and prevents media compression under pressure, maximizing dirt holding capacity. Pollutants remain enclosed inside the cartridge during replacement, avoiding secondary particle leakage and contamination of clean water pipelines. After purification, treated water flows into subsequent separation processes. Operators should replace cartridges promptly once inlet-outlet differential pressure rises to 25–35 PSID to restore system rated flow performance.
Core Competitive Advantages
Full Drop-in Interchangeability:
Consistent with original outer dimensions, end cap geometry, lifting handle and J-type sealing standards; no housing modification required to cut maintenance downtime.
Stable 20μm Filtration Grade:
Gradient polypropylene depth media ensures consistent impurity interception performance, ideal for pre-filtration and medium-coarse security filtration.
Ultra-Large Dirt Holding Capacity:
60-inch long structure provides larger filtration area, slows differential pressure growth and extends service intervals.
Cost & Supply Advantage:
Direct factory supply removes intermediate links and achieves shorter lead times compared with imported genuine HFU660UY020J cartridges.
Strict Batch Quality Control:
Complete testing procedures ensure stable performance for large-scale engineering orders.
Main Application Scenarios
Seawater & brackish water desalination RO security pre-filtration
Thermal power plant boiler make-up water and condensate polishing
Petrochemical circulating water and process liquid purification
Electronic industry ultrapure water pretreatment
Industrial wastewater reuse advanced filtration
Large municipal water treatment projects
FAQ
Q1: Can aftermarket HFU660UY020J be directly installed into original Pall Ultipleat filter housings?
A1: Yes. All critical dimensions and J-type sealing structure comply with original design standards. Plug-and-play installation is supported without extra accessories or vessel adjustments.
Q2: What does each section of model HFU660UY020J stand for?
A2: HFU=Ultipleat High Flow series; 660=6 inch OD, 60 inch length; UY=gradient polypropylene pleated media; 020=20 micron rating; J=J-type sealing configuration.
Q3: What differential pressure triggers filter replacement?
A3: The inlet-outlet differential pressure serves as the core judging indicator. When pressure difference reaches 25–35 PSID, filter media is heavily clogged. Systems with high influent turbidity require shorter replacement cycles.
Q4: Can HFU660UY020J filter cartridge be backwashed and reused?
A4: It belongs to disposable pleated filter consumables. Fine colloids and micro-particles embed deep into media pores. Conventional backwashing cannot fully recover initial filtration efficiency, so timely replacement is advised.
Q5: Are other micron and seal options available for HFU660 series?
A5: Yes. We supply HFU660 series cartridges with 1μm,4.5μm,6μm,10μm,20μm,40μm,70μm ratings, and optional J, H13, H1, EPDM, Viton seals. Please provide exact part number for precise quotation.
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