Softened nanofiltration membrane

FFM’s Nanofiltration membrane series for low-hardness water production achieves a hardness removal rate at exceeding 97% with excellent softening efficiency.
Specifically designed for less than moderate salinity water sources—including municipal tap water, groundwater, and surface water-this series efficiently removes divalent ions (primarily calcium and magnesium), organic compounds, and trace contaminants.
FFM’s Nanofiltration membrane series for low-hardness water production achieves a hardness removal rate at exceeding 97% with excellent softening efficiency.
Specifically designed for less than moderate salinity water sources—including municipal tap water, groundwater, and surface water-this series efficiently removes divalent ions (primarily calcium and magnesium), organic compounds, and trace contaminants.
Model effective membrane area
ft² (m²)
test pressure
psi (bar)
water production
gpd (m3/d)
Stable desalination rate
MgSO4 (NaCL)%
FFM2521NL 14(1.3) 75   (5) 400 (1.5) 96 (30-50)
FFM2540NL 30(2.8) 75   (5) 800  (3.0) 96 (30-50)
FFM4021NL 36(3.4) 75   (5) 1150 (4.3) 96 (30-50)
FFM4040NL 85(7.9) 75   (5) 2400 (9.1) 97 (30-50)
FFM8040NL-375 375(34.9) 75   (5) 11000(41.6) 97 (30-50)
FFM8040NL-400 400(37.2) 75   (5) 12000(45.4) 97 (30-50)
FFM8040NL-440 440(38.1) 75   (5) 13000(49.3) 97 (30-50)

 

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FFM2521NL FFM2540NL FFM40210NL FFM4040NL FFM8040NL-375 FFM8040NL-400 FFM8040NL-440