X-Flow-F-0285

Summary

Product identification

• Product Name: F 0285 (also x-flow F 0285)
• Article Code: PD99600Z
• Type: Classic Ultrafiltration Membrane
• Membrane Material: Hydrophilic tubular polyvinylidene fluoride, cast on a composite polyester carrier.
• Membrane Carrier: Composite polyester non-woven.
• Physical Characteristics:
  • Tubular membrane available in 14.4 mm
  • Structure asymmetric
• Features:
  • High performance and very good anti-fouling behavior
  • Favorable non-fouling characteristics in many applications
  • High thermal and chemical resistance, especially to solvents
• Application Focus: Developed for use in a variety of filtration processes in industrial food and non-food applications.

Operating limits

• Initial flux: 1000 l/m².h at 100 kPa (RO-water at 25 °C)
• Transmembrane pressure: -20 to +300 kPa
• Nominal pore size: 25 nm
• pH: 2 - 10 at 25 °C
• Chlorine exposure: 250000 ppm.h at 25 °C
• Temperature: 1 - 70 °C

Note: Operation of membranes at any combination of maximum limits of pH, concentration, pressure or temperature, during cleaning or production, will severely influence the membrane lifetime.

Applications

• Separation of proteins/enzymes from fermentation slurries
• Concentration of yeast and bacteria slurries
• Concentration of metal hydroxides and polymer suspensions
• Treatment of waste water
• Paint/water separation
• Pretreatment of process and drinking water
• Concentration of oil-in-water emulsions

Chemical Resistance (Solvents)

The resistance of the membrane to solvents strongly depends on actual process conditions; indications are guidelines only.

• Acids (pH > 2): +
• Bases (pH < 11): +
• Organic esters, ketones, ethers: --
• Aliphatic alcohols: ++
• Aliphatic hydrocarbons: ++
• Halogenated hydrocarbons: ++
• Aromatic hydrocarbons: +
• Polar organic solvents: --
• Oils: ++

Cleaning

• Recommended pH during cleaning/disinfection: between 1 and 11
• Recommended temperature during cleaning/disinfection: not to exceed 40 °C
• Compatible cleaning agents (max. concentration/pH given):
  • NaOCl (active chlorine): 500 ppm max.
  • H₂O₂: 1000 ppm max.
  • NaOH: pH ≤ 11
  • Nitric acid: pH ≥ 1
  • Phosphoric acid: pH ≥ 1
  • EDTA: pH ≤ 11
  • Sodium tri-phosphate
  • Citric acid
  • Enzymatic compounds

Storage

• New Membrane Modules:
  • Store as supplied, in a dry, normally ventilated place.
  • Keep away from sources of heat, ignition, and direct sunlight.
  • Storage temperature: 0 to 40 °C.
  • Do not subject to freezing temperatures.
• After Use:
  • UF membranes must be stored wet at all times.
  • To avoid biological growth, treat wet membranes with a compatible biocide.
  • For short-term shutdowns, a daily flush with permeate quality water containing up to 2.0 ppm free available chlorine for 30 to 60 minutes may be adequate for bacteria control.
  • For long-term storage, membranes should be cleaned before disinfection. A 1% sodium metabisulfite solution can be used for disinfection.
  • In either situation, modules should be stored hydraulically filled.

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

Official datasheet (PDF)

PDF datasheet