AMFOR® NF membrane elements are designed for process applications where a separation of solutes is desired. NF membrane is a durable membrane designed to reject organics with a molecular weight above 200 while passing monovalent salts, we also can produce sanitary NF membranes.
Product Specifications
| Product Name |
Active Surface
Area ft2 (m2) |
Applied Pressure
psig(bar) |
Flow rate
gpd |
Flow rate
l/h |
Stabilized Salt
Rejection (%) |
| NF-1812 CaCl2 |
4(0.37) |
70(5.0) |
220 |
34.7 |
40~60 |
| MgSO4 |
200 |
31.5 |
>97 |
| NF-2540 CaCl2 |
28(2.6) |
70(5.0) |
1000 |
157.7 |
40~60 |
| MgSO4 |
850 |
134 |
>97 |
| NF-4040 CaCl2 |
82(7.6) |
70(5.0) |
2925 |
461.3 |
40~60 |
| MgSO4 |
2500 |
394.3 |
>97 |
| NF-2540FF CaCl2 |
28(2.6) |
70(5.0) |
1000 |
157.7 |
40~60 |
| MgSO4 |
850 |
134 |
>97 |
| NF-3838FF CaCl2 |
80(7.4) |
70(5.0) |
2800 |
441.8 |
40~60 |
| MgSO4 |
2400 |
378.7 |
>97 |
| NF-4040FF CaCl2 |
82(7.6) |
70(5.0) |
2825 |
461.3 |
40~60 |
| MgSO4 |
2500 |
394.3 |
>97 |
| 1. Permeate flow and salt rejection based on the following test conditions: 500ppm CaCl2, 70psi (0.48MPa), 25 ℃, |
| 15%Recovery; 2000ppm MgSO4, 70psi (0.48MPa), 25 ℃. |
| 2. Permeate flows for individual elements may vary +/-25%. |
 |
|
|
Product Type
|
Dimension--inches (mm)
|
|
A
|
B
|
C
|
D
|
|
NF-1812
|
11.74(298)
|
0.87(22)
|
0.68(17)
|
1.75(44.5)
|
|
NF-2540
|
40.0(1016)
|
1.19(30.2)
|
0.75(19)
|
2.40(61)
|
|
NF-3838
|
38.0(965.2)
|
---
|
0.83(21.1)
|
3.8(96)
|
|
NF-4040
|
40.0(1016)
|
1.05(27)
|
0.75(19)
|
3.9(99)
|
1 inch=25.4mm |
|
Operation Limits
|
|
Membrane Type ............................................................................................................. Polyamide Thin-Film Composite
Maximum Operating Pressure ................................................................................................................ 600psi (41.0bar)
Maximum Pressure Drop ............................................................................................................................... 13psi (0.9bar
Maximum Operating Temperature ................................................................................................................... 113 (45℃)
pH Range, Continuous Operation ............................................................................................................................... 2-11
pH Range, Short-Term Cleaning (Max.@50℃) ........................................................................................................ 1-12
Maximum Feed water Turbidity .................................................................................................................................. 1NTU
Maximum Feed Silt Density Index ...................................................................................................................................... 5
Free Chlorine Tolerance ................................................................................................................................... ＜ 0.1ppm
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