FilmTec – RO Membranes – Nanofiltration <4" - NF90-2540

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The FilmTec NF90 Membrane Elements provide high productivity performance while removing a high percentage of salts, nitrate, iron and organic compounds such as pesticides, herbicides and THM precursors. The low net driving pressure of the NF90 membrane allows the removal of these compounds at low operating pressures.

Applied Pressure – 70 psig (4.8 bar)

Permeate Flow Rate – 680 gpd (2.6 m3/d)

Minimum Salt Rejection – 97.0%


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Manufacturer Filmtec
Series <4" Nanofiltration
Model Number NF90-2540
Part Number 149982
Description Membrane Type: Polyamide Thin-Film Composite
Maximum Operating Temperature: 113°F (45°C)
Maximum Operating Pressure: 600 psig (41 bar)
Maximum Feed Flow Rate: 4040 elements 16 gpm / 2540 elements 6 gpm
Maximum Pressure Drop: Tape wrapped: 13 psig (0.9 bar) / Fiberglassed: 15 psig (1.0 bar)
pH Range, Continuous Operation: 2 - 11, Short-Term Cleaning (30 min) 1 - 12
Maximum Feed Silt Density Index: SDI 5
Free Chlorine Tolerance: < 0.1 ppm

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