MUNI NF 400

Summary

Product Identification

The Veolia MUNI NF series consists of nanofiltration membrane elements engineered for municipal drinking water plants. This series provides a low-pressure and cost-effective alternative to standard reverse osmosis (RO) treatment.

Key characteristics and benefits:

• Hardness reduction
• Color removal
• Reduction of organic pollutants (such as precursors to THM)
• The resulting product water is virtually free of any harmful biological matter.

The MUNI NF membrane element is tested and certified by NSF international against NSF/ANSI Standard 61 for material requirements only. Each MUNI NF membrane element undergoes a 100% Wet Test Quality Assurance.

• Membrane Type: Thin-Film Membrane (TFM*)
• Model: MUNI-NF-400
• Part Number: 1242400
• Active Area: 400 ft² (37.2 m²)
• Outer Wrap: Fiberglass

Performance

Performance data for the MUNI-NF-400 element:

• Average Permeate Flow: 13,000 gpd (49.2 m³/day)
• Average MgSO₄ Rejection: 99.5%

(Note: Average salt rejection is after 24 hours of operation. Individual flow rate may vary ±20%.)

Testing Conditions:

• Solution: 2,000 ppm MgSO₄
• Operating Pressure: 110 psi (760 kPa)
• Temperature: 77 °F (25 °C)
• pH: 7.5
• Recovery: 15%

Operating Limits

• Typical Operating Pressure: 60-300 psi (483 – 2,069 kPa)
• Maximum Operating Pressure: 600 psi (4,137 kPa)
• Typical Operating Flux: 10-20 GFD (15-35 LMH)
• Maximum Temperature:
  • Continuous Operation: 122°F (50°C)
  • Clean-In-Place (CIP): 104°F (40°C)
• pH Range:
  • Optimum Rejection: 6.0-7.0
  • Clean-In-Place (CIP): 2.0-11.0
• Maximum Pressure Drop:
  • Over an element: 12 psi (83 kPa)
  • Per housing: 50 psi (345 kPa)
• Chlorine Tolerance: 1,000+ ppm-hours (dechlorination recommended)

Feed Water Requirements

• NTU: < 1
• SDI₁₅: < 5

Physical / Dimensions

Dimensions for the MUNI-NF-400 model:

• A: 40.0 inches (101.6 cm)
• B: 1.125 inches (2.86 cm)
• C: 7.9 inches (20.1 cm)
• Boxed Weight: 35 lbs. (15.9 kg)

See the official PDF for the element dimensions diagram.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions present in the original OEM PDF datasheet. For contractual data, please refer to the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet