Small NF Membrane
Small NF Membrane
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 | Applied Pressure | Flow rate | Flow rate | Stabilized Salt |
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