X-Flow-Compact-33

Summary

Product Identification

This is an ULTRAFILTRATION MEMBRANE, specifically the X-FLOW COMPACT 33, also referred to as "8 INCH 5.2 MM Compact 33".

• Article Code: 7821KPB99R

Applications

• Pre-treatment RO and NF
• Surface water
• Drinking and process water production
• Recovery of sandfilter backwash water
• Effluent treatment
• Membrane bioreactor
• Wastewater treatment
• Treatment of oil-in-water emulsions

Operating Limits

• Maximum Feed Pressure:
  • 800 kPa at 20 °C
  • 650 kPa at 30 °C
  • 550 kPa at 40 °C
  • 450 kPa at 50 °C
  • 300 kPa at 60 °C
• Maximum Permeate Pressure:
  • -100 ~ +500 kPa at 20 °C
  • -100 ~ +500 kPa at 30 °C
  • -100 ~ +500 kPa at 40 °C
  • -50 ~ +500 kPa at 50 °C
  • -50 ~ +500 kPa at 60 °C
• Maximum Transmembrane Pressure (TMP):
  • -100 ~ +500 kPa at 20 °C
  • -100 ~ +500 kPa at 30 °C
  • -100 ~ +500 kPa at 40 °C
  • -50 ~ +500 kPa at 50 °C
  • -50 ~ +500 kPa at 60 °C (Note: Negative TMP correlates with backwash pressure)
• Maximum Temperature: 60 °C

Mechanical / Hydraulic

• Hydraulic membrane diameter: 5.2 mm
• Membrane area: 33 m²
• Feed connection D0: 220.0 mm
• Module length L0: 3000 mm (±1)
• Saddle diameter D1: 240 mm
• Module diameter D2: 213 mm
• Permeate connection d0: 73.0 mm
• Permeate length I0: 165 mm (±1)
• Permeate position I1: 90 mm (±1)
• Dry weight of membrane element: ca. 45 kg [100 lbs]
• Membrane element filled with water: ca. 110 kg [242 lbs]
• Crossflow flow rate (Process Characteristics: water, 20°C): 53.5 x v [m³/h] (where v = superficial velocity in m/s)
• Pressure-drop across module (laminar flow): 1.2 x L0 x v [kPa] (where L0 = module length in m, v = superficial velocity in m/s)
• Pressure-drop across module (turbulent flow): 3.6 x L0 x v^1.75 [kPa] (where L0 = module length in m, v = superficial velocity in m/s)

Materials of Construction

• Housing: PVC-C, drinking water quality
• Potting: EP resin
• Membrane:
  • Material composed of polyvinylidene fluoride
  • Carrier is a composite polyester woven/non-woven

Membrane Characteristics

• Hydrophilic tubular polyvinylidene fluoride membrane cast on a polyester carrier.
• Structure asymmetric.
• Mean pore size of 30 nm.
• Developed for use in large-scale processes for water purification.
• High performance and a very good anti-fouling behaviour.
• Membrane elements can be backflushed for efficient membrane cleaning resulting in a higher average product flux.
• Backwash water should be free of particulates and of permeate quality or better.
• Backwash pumps should preferably be made of non-corroding materials (e.g., plastic or stainless steel).
• If compressed air is used to pressurize backwash water, a two-phase air/water mixture should not enter the element.
• To avoid mechanical damage, do not subject the module/element to sudden temperature changes, particularly decreases.
• Do not exceed 60 °C process temperature.
• Bring module/element back to ambient operating temperature slowly (typical value 3 °C/min) to prevent irreparable damage.

General Solvent Resistance

(Indications are guidelines only; depends on actual process conditions)

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

Cleaning Chemical Resistance

• NaOCl (active chlorine):
  • 500 ppm max.
  • Typical 200 ppm, at ≤ 40 °C
  • Maximum 500 ppm
  • 250,000 ppm hours cumulative at 30 °C
• H₂O₂: 1000 ppm max.
• NaOH: pH ≤ 11
• Nitric acid: pH ≥ 1
• Phosphoric acid: pH ≥ 1
• EDTA: pH ≤ 11
• Citric acid
• Enzymatic compounds
• Recommended pH during cleaning/disinfection: between 1 and 11
• Recommended temperature during cleaning/disinfection: not to exceed 40 °C

Storage

• New membrane modules can be stored as supplied.
• Storage environment: dry, normally ventilated place, away from sources of heat, ignition, and direct sunlight.
• Storage temperature: between 0 and 40 °C.
• Membrane modules should not be subjected to any freezing temperatures.
• After use, UF membranes need to be stored wet at all times.
• To avoid biological growth during shutdowns or storage, wet membranes should be treated 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 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. For contractual data, please refer to the official OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet