Nano 7

Summary

Product identification

The NANO7 is an ultra-low energy, ion-selective nanofiltration element. It features a Polyamide NF membrane.

Oltremare NANO7 nanofiltration elements are designed to remove a high percentage of TOC and organics with a medium to high salt passage and medium hardness passage. It is an ideal element when good removal of organics is required, with partial softening to maintain a minimum level of hardness.

Product water

• Stabilized Salt Rejection (%):

  • 97 (Test conditions: 2000 ppm MgSO₄, 4.8 bar (70 psi), 25°C (77°F), 15% recovery, pH 6.5 - 7, 30 minutes operation)

  • 45 - 55 (Test conditions: 500 ppm NaCl, 4.8 bar (70 psi), 25°C (77°F), 15% recovery, pH 6.5 - 7, 30 minutes operation)
• Permeate Flow: (Flow rates may vary +35 or -20 percent)
  • Oltremare NANO7 - 2540: 3.2 (850) m³/day (gpd) – 3.9 (1020) m³/day (gpd)
  • Oltremare NANO7 - 4021: 3.9 (1030) m³/day (gpd) – 4.8 (1275) m³/day (gpd)
  • Oltremare NANO7 - 4040: 9.5 (2500) m³/day (gpd) – 11.4 (3000) m³/day (gpd)

Operating limits

• Maximum Operating Pressure:
  • 41 bar (600 psi) for fiberglassed elements
  • 20.7 bar (300 psi) for tape wrapped elements (Models can be both fiberglassed and tape wrapped)
• Maximum Operating Temperature: 45 °C (113 °F)
• Cleaning pH Range: 1.0 – 12.0
• Chlorine Tolerance: < 0.1 ppm
• Maximum Pressure Drop:
  • 0.7 bar (10 psi) per element
  • 4 bar (60 psi) per housing

Feed water

• Maximum SDI₁₅: 5.0
• Maximum Turbidity: 1 NTU
• Free Chlorine: < 0.1 ppm (Pretreatment is recommended for the removal of free chlorine and other oxidizing agents to prevent damage to membranes. Oxidizing agents, such as free chlorine, in contact with polyamide membranes may result in shortened operating life or membrane failure. Such oxidation damage is excluded from warranty.)

Mechanical / hydraulic

• Design Information:
  • Oltremare NANO7 - 2540:
    • Maximum Feed Flow: 1.38 (6) m³/h (gpm)
    • Membrane Area: 2.6 (28) m² (ft²)
    • Feed Spacer Thickness: 28 mil
  • Oltremare NANO7 - 4021:
    • Maximum Feed Flow: 2.72 (12) m³/h (gpm)
    • Membrane Area: 3.2 (35) m² (ft²)
    • Feed Spacer Thickness: 28 mil
  • Oltremare NANO7 - 4040:
    • Maximum Feed Flow: 3.6 (16) m³/h (gpm)
    • Membrane Area: 7.9 (85) m² (ft²)
    • Feed Spacer Thickness: 28 mil
• Physical Dimensions:
  • Oltremare NANO7 - 2540:
    • Element Weight: 1.8 (4) kg (lb)
    • Dim. A: 1016 (40) mm (inches)
    • Dim. B: 61 (2.4) mm (inches)
    • Dim. C: 19.1 (0.75) mm (inches)
    • Permeate Tube: Male
  • Oltremare NANO7 - 4021:
    • Element Weight: 1.8 (4) kg (lb)
    • Dim. A: 533.4 (21) mm (inches)
    • Dim. B: 100.3 (3.95) mm (inches)
    • Dim. C: 19.1 (0.75) mm (inches)
    • Permeate Tube: Male
  • Oltremare NANO7 - 4040:
    • Element Weight: 3.6 (8) kg (lb)
    • Dim. A: 1016 (40) mm (inches)
    • Dim. B: 100.3 (3.95) mm (inches)
    • Dim. C: 19.1 (0.75) mm (inches)
    • Permeate Tube: Male
  • Permeate Tube Dimension "D" (protruding):
    • 30.5 mm (1.2 in) for modules 2540 and 4021
    • 26.7 mm (1.05 in) for module 4040

Important Information

• Start-up: Flush elements for 30 minutes at low pressure and discard permeate during the flush prior to operation. Refer to Element Start-Up Guide – System Start-Up (TSG-O-005).
• Cleaning: Membrane elements must be cleaned periodically to ensure proper operation and to prevent membrane damage. Refer to Membrane Cleaning Guide – Water Application Elements (TSG-C-001).
• Storage: Membrane elements must be stored appropriately to ensure proper operation and to prevent membrane damage. Refer to Element Storage Guides (TSG-O-009 & TSG-O-01).

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Disclaimer: This summary is based on the provided text extraction and may not include all figures, footnotes, or the latest revisions. Contractual data for specific projects must match the OEM PDF revision used on that project.

Official datasheet (PDF)

PDF datasheet