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Dow Filmtec NF-4040 40 inch x 4 inch Nanofiltration Membrane

Dow Filmtec NF-4040 40 inch x 4 inch Nanofiltration Membrane

Item SKU: NF-4040

MFG ID: NF-4040 | UPC:




Dow Filmtec NF-4040 40 inch x 4 inch Nanofiltration Membrane

Features:

  • Filmtec NF-4040 membrane elements are designed for process applications where a separation of solutes is desired.
  • NF-4040 is a durable polypiperazine amide membrane designed to reject organics with a molecular weight above 200 while passing monovalent salts.
  • Filmtec NF-4040 membrane elements are used in a variety of applications such as desalting organic compounds, acid processing, metal recovery and antifreeze recovery.
  • Filmtec NF-4040 membrane elements replace discontinued NF45 elements.
  • Permeate flow and salt rejection based on the following test conditions: 2,000 ppm MgSO4, 130 psig (8.9 bar), 77°F (25°C), pH 8 and 15% recovery.
  • Target water flow rates for new elements are: NF-2540 - 920 gpd (3.5 m3/d), NF-4040 - 3,050 gpd (11.5 m3/d), NF-400 - 13,700 gpd (51.9 m3/d).
  • Minimum MgSO4 rejection is 98.0%. Stabilized rejection is >99%.
  • Product specifications may vary slightly as improvements are implemented.

Specifications:

  • Membrane type: Short-term sanitizing (@77°F/25°C max.)
  • Maximum operating temperature: Polypiperazine amide thin-film composite
  • Maximum operating pressure: 113°F (45°C)
  • Maximum pressure drop: 600 psig (41 bar), 15 psig (1.0 bar)
  • pH range, continuous operation: 3 - 10
  • pH range, short-term cleaning: 1 - 12
  • Free chlorine concentration: < 0.1 ppm
  • Hydrogen peroxide:20 ppm
  • Active area - ft2 (m2): 82 (7.6)

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