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TaFlux SevBore DW Series

General Information

TaFlux SevBore DW series ultrafiltration membrane modules are designed and manufactured as equivalents, which are used for production of process water, potable water and wastewater. Major applications are the filtration of surface water, potable water, seawater and industrial wastewater. TaFlux SevBore DW series ultrafiltration modules use Tanal’s SevBore fiber technology with an inside-out flow direction. SevBore fibers are naturally hydrophilic 7-bore PES hollow fibers by advanced ultrafiltration technology, which makes TaFlux SevBore DW series ultrafiltration membrane modules the most robust PES (polyether sulfone) UF membrane on the market.

The mode of operation is either dead-end or cross-flow (though cross flow mode is only used in certain circumstances), backwash (with filtrate only) at regular intervals and chemically enhanced backwash are required for the continuous operation.

TaFlux SevBore DW Series Ultrafiltration Membrane

Features

  • A nominal pore size of 0.02 μm for optimal removal of particles, bacteria, and viruses
  • Inside-out flow direction without air scouring
  • PES membrane fibers of 7 bores
  • Typical filtrate quality SDI < 3, turbidity < 0.1 NTU

Advantages

  • Extremely high mechanical strength with no fiber breakage
  • High chemical tolerance
  • High-quality filtrate by reliable blocking of microorganisms and viruses
  • Minimum operating costs and efficient backwash
  • Direct and economical module replacement for plug-and-play

Applications

  • Surface water
  • Potable water
  • Seawater desalination
  • Pre-treatment of industrial water
  • Industrial wastewater
  • Municipal sewage

Module Dimensions

TaFlux SevBore DW Series Ultrafiltration Membrane Dimension

Model

Total length L (mm/inch)

Length feed connectors L1 (mm/inch)

Length without end caps L2 (mm/inch)

Length top feed to filtrate connector L3 (mm/inch)

End cap clamp diameter D (mm/inch)

Diameter without end caps D1 (mm/inch)

Connector length W (mm/inch)

Feed, Filtrate connector (d)

TF7B0.9D-38W

1,180/46.46

1,100/43.31

985/38.78

190/7.48

295/11.61

250/10

40/1.57

2

TF7B0.9D-60W

1,680/66.14

1,600/62.99

1,485/58.46

TF7B0.9D-70W

1,798/70.79

1,718/67.64

1,603/63.11

TF7B0.9D-80W

1,914/75.35

1,834/72.20

1,720/67.72


Specifications

Model

TF7B0.9D-38W

TF7B0.9D-60W

TF7B0.9D-70W

TF7B0.9D-80W

Effective membrane area (m²/ ft²)

38/410

60/646

70/754

80/861

Fiber ID/OD

0.9/4 mm (0.04/0.16 inch)

Membrane material

Modified PES (polyether sulfone), 7 bores

Flow direction

Inside-out

Pore size

0.02 μm

Housing material

UPVC

End cap material

UPVC

Clamp material

Stainless Steel

Sealing material

EPDM

Potting material

Epoxy resin

Feed/filtrate

connector

DN50 (2 inch Victaulic)

Weight (kg /lbs.)

40/90

55/120

57/125

58/128

Operating and Cleaning Limits

Temperature range

1-40℃ (34-104°F)

Max.rate of temperature change (per minute)

5℃ (9°F)

Max. feed pressure

5 bar (72.5 psi)

Max. rate of pressure change (per second)

0.5 bar (7.25 psi)

Max. trans-membrane pressure

1.5 bar (21.75 psi)

Max. backwash pressure

3 bar (43.5 psi)

Filtration flux

60-180 L/m2·h (35-105 gfd)

Max. backwash/forward flush

230-300 L/m2·h (135-175 gfd)

pH-continuous operation @ 25℃

2 - 11

pH-CIP @ 25℃

1 - 13

Hypochlorite (NaOCl) for cleaning

50 to 200 ppm

Hydrogen peroxide for cleaning

100 to 500 ppm



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