Description
Industrial Nano Filtration Membrane Series
Nano Filtration Membrane is a special and functional semi-permeable membrane which selectively allows certain LMW and low-valention to pass through. Its desalination rate is between 40–98%. It can block the organic in the range of 150–500 LMW, and it performs better in desalinating single valence anions solution. Nowadays, nano membranes have been widely used in many fields, including drinking water, food processing, pharmaceuticals and biology industry.
| Model | Average Salt Rejection (%) | Minimum Salt Rejection (%) | Average Permeated Flow (GPD) | Active Membrane Area (SQM) |
|---|---|---|---|---|
| NF70–8040 | NaCl: – MgSO₄: – |
NaCl: 40–70 MgSO₄: >98 |
10000 | 37 |
| NF70–4040 | NaCl: – MgSO₄: – |
NaCl: 40–70 MgSO₄: >98 |
2500 | 7.5 |
| NF70–4021 | NaCl: – MgSO₄: – |
NaCl: 40–70 MgSO₄: >98 |
1000 | 3.4 |
| NF90–8040 | NaCl: 85–95 MgSO₄: >98 |
– | 10000 | 37 |
| NF90–4040 | NaCl: 85–95 MgSO₄: >98 |
– | 2500 | 0.5 |
| NF90–4021 | NaCl: 85–95 MgSO₄: >98 |
– | 1000 | 3.4 |
✅ Testing Conditions:
-
Testing Pressure: 110 psi
-
Temperature of Testing Solution: 27 °C
-
Concentration of NaCl Solution: 2000 ppm
-
Concentration of MgSO₄ Solution: 2000 ppm
-
pH Value of Testing Solution: 8.0
-
Recovery Rate: 15–20%
✅ Operation Limits and Conditions:
-
Max. Working Pressure: 600 psi
-
Max. Working Feed Water Flow:
-
75 gpm (8040)
-
16 gpm (4040/4021)
-
-
Max. Feed Water Temperature: 45 °C
-
Max. Pressure SDI: 5
-
Residual Chlorine Decline: < 0.1 ppm
-
pH Range of Feed Water: 3.0 – 10.0
-
Max. Pressure Drop Per Element: 15 psi
