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Filmtec (NF-4040) NANO Filtration Membrane 6,800 GPD 8"X40"

Product Code MM-NF-4040

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FILMTEC NF membrane elements are designed for process applications where a separation of solutes is desired. "NF" is a durable membrane designed to reject organics with a molecular weight above 200 while passing monovalent salts. FILMTEC NF membrane elements replace NF45 elements in a variety of applications such as desalting organic compounds, acid processing, metal recovery from waste streams, and antifreeze recovery.

Product Name Nominal Active Surface Area
ft2 (m2)
Stabilized Salt Rejection
Minimum Salt Rejection
FILMTEC NF-4040 82 (7.6) >99 98.0
  • Permeate flow and salt rejection based on the following test conditions: 2000 ppm MgSO4, 130 psig (8.9 bar), 77°F (25°C), pH 8, 15% recovery.
  • Target water flow rates for new elements are: 1950 gpd (7.4 m3/d). Membrane flow on specific process streams will vary as a function of the feed.
  • For the purpose of improvement, specifications may be updated periodically.