SPIRAL-NF

NF membrane has a molecular weight cut-off between 200-800 Dalton usually. It is generally targeted to remove only divalent and larger ions. Monovalent ions such as sodium and chloride will pass through a nanofiltration membrane, therefore many of its uses involve groundwater softening, de-salting of the process stream. NF membrane is also becoming more widely used in food processing applications such as dairy, for simultaneous concentration and partial (monovalent ion) demineralisation. NF membrane operation press is around 3.5-30 bar.

We supply spiral NF membrane with a precise MWCO. They have a compact design and an optimum surface area to volume ratio. The feed channel height can be varied by the thickness of the feed spacer material (from 13 to 120 mil). This helps to adapt the viscosity or the solids content of the liquid. This design feature leads to excellent hydrodynamics in combination with low energy demand. To meet some specialty applications, acid/caustic resistant, fouling resistant or high temperature membrane products are available.

 ADVANTAGES                             

 APPLICATION

> Imported high quality raw material, high flux, chemical resistance

> Water softening

> MWCO is precise

> Precious metal recovery

> Sanitary design without dead

> Concentration of protein, amino acid, vitamin in food, 

    beverage and pharmaceutical industry

> Simple and economic module replacement

> Acid/caustic recycling

> Various choices of module dimensions

> Dye color removal

> High packing density

> Heavy metal separation of waste water

NF Configuration

Outer Wrap

Membrane Range

Size

Feed Spacer

Internal Code

SPIRAL

SANITARY NET

GLASS FIBER

NF1

NF2

NF3

…

23192.3"×19"

25402.5"×40"

38383.8"×38"

63386.3"× 38"

80408.0"× 40"

……

A=13mil

B=17mil

C=20mil

D=26mil

E=28mil

F=31mil

G=46mil

H=65mil

I=80mil

J=120mil

may be omitted

1=Diamond 2=Parallel

RisingSun Products

   Others

RisingSun Products

   Others

SG-NF1-2540

DOW NF90-2540

SG-NF4-2540-F1

GE DL2540F30

SG-NF1-4040

DOW NF90-4040

SG-NF4-2540-G2

GE DL2540F50

SG-NF1-8040

DOW NF90-400

SG-NF4-4040-F1

GE DL4040F30

SG-NF4-4040-G2

GE DL4040F50

SS-NF2-3838-F1

DOW NF245-3838/30-FF

SG-NF4-8040-F1

GE DL8040F30

SS-NF2-3840-F1

DOW NF245-3840/30-FF

SG-NF4-8040-G2

GE DL8040F50

SS-NF2-8040

DOW NF245-390-FF

SG-NF5-2540-F1

GE DK2540F1072

SG-NF3-4040

DOW NF270-4040

SG-NF5-2540-G2

GE DK2540F1073

SG-NF3-8040

DOW NF270-400

SG-NF5-4040-F1

GE DK4040F1020, Stinger

SG-NF5-4040-G2

GE DK4040F1021, Stinger

SS-NF6-4040

GE HL4040F

SG-NF5-8040-F1

GE DK8040F1001

SS-NF6-8040

GE HL8040F

SG-NF5-8040-G2

GE DK8040F1002