XIGA 64

Summary

Product identification

The X-Flow XIGA 64 is an ultrafiltration (UF) membrane element designed for process and potable water filtration. It operates in dead-end mode with regular backwash (permeate only) and chemically enhanced backwash.

• Product Name: X-FLOW XIGA 64 (also referred to as XIGA HP)
• Article Code: 22E2FL895A
• Membrane Type: Ultrafiltration membrane
• Membrane Material: Hydrophilic blend of polyvinylpyrrolidone (PVP) and polyethersulfone (PES)
• Structure: Asymmetric/microporous
• Nominal Pore Size: 20 nm
• Key Features: High performance, very good anti-fouling behavior.
• Typical Applications: Filtration of surface water, large-scale drinking and process water production.
• EPA Est. No.: 090374-NLD-001

Mechanical / hydraulic

• Membrane Diameter: 0.83 mm [32.7 mil]
• Effective Membrane Area: 64 m² [687 ft²]
• Feed Connection D0: 220.0 mm [8.66 Inch]
• Module Length L0: 1537.5 mm [60.51 Inch]
• Permeate Connection d0: 42.6 mm [1.68 Inch]
• Dry Weight: ca. 34 kg [75 lbs]
• Weight (filled with water): ca. 66 kg [145 lbs]
• Materials of Construction:
  • Housing: PVC white
  • Flow distributor: PVC/PP
  • Potting: PU resin
  • Membrane: PES/PVP

Operating limits

• Max. Transmembrane Pressure: 300 kPa [43 psi]
• Max. Backflush Pressure: 300 kPa [43 psi]
• Temperature Range: 0-40 °C [32-104 °F]
• Max. System Pressure: See specifications of membrane housing supplier.
• Process Temperature: Do not exceed 40 °C.
• Temperature Change Rate: Max. 3 °C/min (when bringing the module back to ambient operating temperature).
• pH during filtration:
  • Acids: > 2
  • Bases: < 12
• pH during cleaning:
  • Acids: > 1
  • Bases: < 13

Product water

• Typical Permeate Quality:
  • SDI < 3
  • Turbidity < 0.1 NTU
• Microbial Reduction (by mechanical means):
  • Bacteria (Pseudomonas diminuta): 99.9999% (LOG6)
  • Virus (MS2 colifages): 99.99% (LOG4)

Cleaning chemical resistance

• Acids:
  • Hydrochloric Acid: ++
  • Nitric Acid: ++
  • Sulphuric Acid: ++
  • Phosphoric Acid: ++
  • Acetic Acid: ++
  • Citric Acid: ++
• Bases:
  • Sodium Hydroxide (<4%): ++
  • Potassium Hydroxide (<4%): ++
• Oxidizing Agents (resistance to individual agents):
  • Sodium Hypochlorite (NaOCl):
    • Typical: 200 ppm, at ≤ 40 °C, at ≥ pH 10
    • Maximum: 500 ppm
    • Cumulative: 250,000 ppm hours; ≥ pH 10
  • Chlorine Dioxide (ClO₂):
    • Typical: 1 ppm, at ≤ 40 °C
    • Maximum: 2 ppm
    • Cumulative: 90,000 ppm hours
  • Hydrogen Peroxide (H₂O₂):
    • Typical: 200 ppm, at ≤ 40 °C
    • Maximum: 500 ppm
    • Cumulative: 350,000 ppm hours
  • Combined Exposure (NaOCl + ClO₂):
    • 2.6 x Exposure to ClO₂ (in ppm hours) + Exposure to NaOCl (in ppm hours) < 250,000 ppm hours.
  • Note: Exposure limits are affected by temperature, pH, and the presence of metals. Reduce membrane exposure to oxidizing agents to a minimum.

General solvent resistance

(Indications are guidelines only, as resistance depends on actual process conditions.)

• Acids: ++
• Bases: ++
• Aliphatic alcohols: +
• Aliphatic hydrocarbons: +
• Halogenated hydrocarbons: --
• Aromatic hydrocarbons: --
• Polar organic solvents: --
• Oils: ++

Storage

• New Modules:
  • Can be stored as supplied in original packaging.
  • Contain an aqueous preservation solution of glycerine (20wt%) and sodium metabisulfite (1wt%).
  • Store in a dry, normally ventilated place, away from heat, ignition, and direct sunlight.
  • Storage temperature: Between 0 and 40 °C.
  • Do not subject to freezing temperatures.
  • Shelf life: Maximum 6 months for unused modules in unopened packaging under correct storage conditions.
• After Use (Wet Storage):
  • UF membrane modules must be stored wet at all times.
  • To avoid biological growth during shutdowns or storage, treat with a compatible biocide.
  • Short-term shutdowns (1-7 days): A daily backwash with UF permeate quality water for 30 seconds at 240 lmh should be adequate for bacteria control. Modules must be cleaned by a standard Chemical Enhanced Backwash (CEB) before the shutdown period.
  • Long-term storage (> 7 days): Membranes should be disinfected after a CEB. A 0.5% sodium metabisulfite solution can be used for disinfection. Modules should remain filled with storage solution in both short and long-term situations.

---

Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the official OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror