X-Flow-Xiga-64

Summary

Product Identification

• Product Name: X-FLOW XIGA 64 ULTRAFILTRATION MEMBRANE
• Article Code: 22E2FL895A
• Membrane Type: Hydrophilic membrane composed of a blend of polyvinylpyrrolidone and polyethersulfone (PES/PVP)
• Membrane Structure: Asymmetric/microporous
• Nominal Pore Size: 20 nm
• Application: Used for process and potable water filtration. Typical applications include filtration of surface water, large-scale drinking, and process water production.
• Mode of Operation: Dead-end with regular backwash (permeate only) and chemically enhanced backwash.

Mechanical / Hydraulic

• Membrane Diameter: 64 mm / 687 mil
• Effective Membrane Area: 0.83 m² / 32.7 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: Approximately 34 kg / 75 lbs
• Wet Weight (filled with water): Approximately 66 kg / 145 lbs
• Materials of Construction:
  • Housing: PVC white
  • Flow distributor: PVC/PP
  • Potting: PU resin
  • Membrane: PES/PVP

Operating Limits

• Maximum Trans-membrane Pressure: 300 kPa / 43 psi
• Maximum Backflush Pressure: 300 kPa / 43 psi
• Temperature Range: 0-40 °C / 32-104 °F
• Maximum Process Temperature: Do not exceed 40 °C.
• Temperature Change Rate: Do not subject the membrane to sudden temperature changes, particularly decreases. Bring module back to ambient operating temperature slowly (maximum 3 °C/min).
• pH during filtration: > 2
• pH during cleaning: > 1 (Acids), < 13 (Bases)

Product Water

• Typical Permeate Quality:
  • SDI < 3
  • Turbidity < 0.1 NTU
• Reduction Claims:
  • 99.9999% (LOG6) reduction of bacteria (Pseudomonas diminuta) by mechanical means.
  • 99.99% (LOG4) reduction of virus (MS2 colifages) by mechanical means.
  • EPA Est. No. 090374-NLD-001

Cleaning Chemical Resistance

• Oxidants (individual limits):
  • Sodium Hypochlorite (NaOCl):
    • Typical: 200 ppm, at ≤ 40 °C, at ≥ pH 10
    • Maximum: 500 ppm
    • Cumulative: 250,000 ppm hours; at ≥ 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 Oxidant Exposure: The total combined exposure for Sodium Hypochlorite and Chlorine Dioxide is calculated as: Combined exposure (NaOCl + ClO₂) = 2.6 x Exposure to ClO₂ (in ppm hours) + Exposure to NaOCl (in ppm hours) < 250,000 ppm hours
• Acids (at pH > 1 during cleaning):
  • Hydrochloric Acid: ++ (Resistant)
  • Nitric Acid: ++ (Resistant)
  • Sulphuric Acid: ++ (Resistant)
  • Phosphoric Acid: ++ (Resistant)
  • Acetic Acid: ++ (Resistant)
  • Citric Acid: ++ (Resistant)
• Bases (at pH < 13 during cleaning):
  • Sodium Hydroxide (<4%): ++ (Resistant)
  • Potassium Hydroxide (<4%): ++ (Resistant)

General Solvent Resistance

(Note: '++' = Resistant, '+' = Limited resistance, '--' = Not resistant. Guideline 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:
  • Store in original packaging.
  • Contains aqueous preservation solution of glycerine (20wt%) and sodium metabisulfite (1wt%).
  • Store in a dry, normally ventilated place, away from sources of heat, ignition, and direct sunlight.
  • Store 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:
  • Must be stored wet at all times.
  • To avoid biological growth during shutdowns or storage, wet membranes should be treated with a compatible biocide.
  • Short-term shutdowns (1-7 days): 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. Clean using a CEB before disinfection. A 0.5% sodium metabisulfite solution can be used for disinfection. Modules should remain filled with the storage solution.

Other Considerations

• Backwash Water Quality: Should be free of particulates and of UF permeate quality or better.
• Backwash Pumps: Preferably made of non-corroding materials (e.g., plastic or stainless steel).
• If compressed air is used for backwash, do not allow a two-phase air/water mixture to enter the element.
• Operation at any combination of maximum limits (pH, concentration, pressure, temperature) will influence membrane lifetime.

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Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the latest revisions found in the official PDF. Contractual data must always match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet