High Flow Cartridge HFU640UY700H13W belongs to Pall Ultipleat HFU coreless wide‑diameter filter series, widely deployed in industrial raw water pretreatment and RO membrane front‑end security filtration projects. Our interchangeable aftermarket HFU640UY700H13W fully replicates original crescent pleat layout, single open‑end construction, integrated lifting handle and H13 U‑cup sealing dimensions, supporting direct plug‑and‑play installation inside standard Pall high flow filter housings without equipment modification. Constructed with UY gradient polypropylene pleated media, this replacement cartridge delivers stable high‑flow capacity, reliable 70μm particle retention and outstanding dirt‑holding performance. Many water treatment EPC partners combine HFU620GF100H13 filter cartridge and HFU660GF020H filter element with HFU640UY700H13W alternatives to establish integrated multi‑stage water purification systems.
High Flow Cartridge HFU640UY700H13W – Pall Ultipleat Core‑Free Pleated Filter Cartridge
High Flow Cartridge HFU640UY700H13W belongs to Pall Ultipleat HFU coreless wide‑diameter filter series, widely deployed in industrial raw water pretreatment and RO membrane front‑end security filtration projects. Our interchangeable aftermarket HFU640UY700H13W fully replicates original crescent pleat layout, single open‑end construction, integrated lifting handle and H13 U‑cup sealing dimensions, supporting direct plug‑and‑play installation inside standard Pall high flow filter housings without equipment modification. Constructed with UY gradient polypropylene pleated media, this replacement cartridge delivers stable high‑flow capacity, reliable 70μm particle retention and outstanding dirt‑holding performance. Many water treatment EPC partners combine HFU620GF100H13 filter cartridge and HFU660GF020H filter element with HFU640UY700H13W alternatives to establish integrated multi‑stage water purification systems.
Product Overview
High Flow Cartridge HFU640UY700H13W adopts classic Ultipleat core‑free 6‑inch wide‑diameter pleated design with inside‑out flow direction. Optimized crescent pleat structure maximizes effective filtration surface area. As a 40‑inch long high‑flow cartridge with 70μm nominal filtration rating, it is commonly used for coarse pre‑filtration in seawater desalination, power plant water treatment and municipal water supply projects. Adopting this large‑size cartridge helps reduce total cartridge quantity and lower overall investment for filter vessels. However, high procurement cost and long import lead‑times of genuine Pall HFU640UY700H13W bring budget pressure and project‑delay risks for plant operators and engineering contractors. Our factory manufactures fully interchangeable replacement cartridges to achieve equivalent filtration performance with competitive pricing and shorter delivery cycle.
Core specifications of HFU640UY700H13W: 6 inch outer diameter, 40 inch nominal length, 70μm filtration rating, UY gradient polypropylene media, H13 NBR U‑cup seal with customized W structural configuration. End caps, drainage support layers and outer protective wrap are reinforced polypropylene. All components adopt thermal‑fusion molding without adhesive bonding, effectively avoiding 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 HFU640UY700H13W 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 large colloids, alleviating RO membrane fouling risks and offering reliable protection for downstream membrane modules, water pumps and precision regulating valves.
Filtration Working Principle
High Flow Cartridge HFU640UY700H13W applies mature 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 polypropylene media. Coarse sediment and large flocs are trapped on inner pleated layers, while fine particles and colloids prone to trigger membrane clogging are deeply intercepted by outer media layers.
Optimized crescent pleat arrangement minimizes 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 clean‑pipeline contamination. 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 H13 U‑cup sealing standards; no housing modification required to cut maintenance downtime.
Stable 70μm Filtration Grade:
Gradient polypropylene depth media delivers steady impurity‑interception performance, perfectly suited for raw‑water coarse pre‑filtration.
Excellent Dirt‑Holding Capacity:
Optimized crescent‑pleat layout expands filtration area, slows differential‑pressure growth and extends service intervals.
Broad Chemical Compatibility:
All‑polypropylene construction offers good compatibility for most aqueous industrial fluids.
Cost & Supply Advantage:
Direct factory supply removes intermediate links and achieves shorter lead‑times compared with imported genuine HFU640UY700H13W 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
Industrial raw‑water pretreatment
Industrial wastewater reuse advanced filtration
Large municipal water treatment projects
FAQ
Q1: Can aftermarket HFU640UY700H13W be directly installed into original Pall Ultipleat filter housings?
A1: Yes. All critical dimensions and H13 U‑cup sealing structure comply with original design standards. Plug‑and‑play installation is supported without extra accessories or vessel adjustments.
Q2: What does each segment of model HFU640UY700H13W stand for?
A2: HFU = Ultipleat High Flow series; 640 = 6 inch OD, 40 inch length; UY = gradient polypropylene pleated media; 700 = 70 micron rating; H13 = NBR U‑cup seal; W = customized structural version.
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 HFU640UY700H13W 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 ratings and seal options available for HFU640 series?
A5: Yes. We supply HFU640‑series cartridges with 1μm,4.5μm,10μm,20μm,40μm,70μm,100μm ratings, and optional H13, J, H1, EPDM, Viton seals. Please provide exact part number for precise quotation.
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