FILMTEC™ NF245-390-FF

Summary

Product Identification

DuPont Nanofiltration (NF) membrane elements are designed for food and dairy processing applications, including desalting, purification, and other separations. These NF245 elements incorporate an improved nanofiltration membrane sheet engineered to reject organics with a molecular weight above 300 amu while allowing monovalent salts to pass.

The HYPERSHELL™NF245-390-FF features a polypropylene outer shell and complies with FDA Indirect Food Contact regulations. The HYPERSHELL™ design aims to:

• Minimize channeling & fluid bypass
• Prevent premature element failures
• Improve element hydrodynamics

HYPERSHELL™ elements require approximately 30% less flow for an equivalent pressure drop compared to mesh wrap designs, potentially saving energy. HYPERSHELL™390 elements are designed in an 8040 style with a 1-inch exposed product water tube instead of a flush cut end on each side.

Model: HYPERSHELL™NF245-390-FF

Typical Properties:

• Active Area: 40.00 ft² (m² value not specified in this table row)
• Element Dimensions:
  • A: 40.00 in (1,016 mm)
  • B: 1.125 in (28.58 mm)
  • C: 7.9 in (200 mm)
• Feed Spacer: 27 mil
• Outer Shell: Full Fit

Operating Limits

• Maximum Operating Pressure: 800 psig (54.8 bar)
• Maximum Operating Temperature:
  • 122ºF (50ºC) at pH 2 – 10
  • 95ºF (35ºC) above pH 10
• pH Range: 2 – 11
• Free Chlorine Tolerance: Non-detectable
• Hydrogen Peroxide Usage Limit:
  • Continuous operation: 20 ppm
  • Short-term cleaning (@ 77°F/25°C maximum): 1,000 ppm

Cleaning in Place (CIP) Parameters

• Maximum CIP Pressure: 15 – 75 psig (1 – 5 bar)
• Maximum CIP Temperature:
  • 122ºF (50ºC) at pH 1.8 – 11
  • 113ºF (45ºC) at pH 1.8 – 11.2
• Free Chlorine Tolerance: Below Detectable Limits
• Hydrogen Peroxide Usage Limit:
  • Continuous operation: 20 ppm
  • Short-term cleaning (@ 77°F/25°C maximum): 1,000 ppm

Design Guidelines

• Max. Recirculation Cross-Flow: 80 gpm (18.2 m³/h)
• Max. Element ΔP (Pressure Drop): 13 psi (0.9 bar)
• Maximum Pressure Drop Across Entire Vessel: 60 psi (4.1 bar)

Additional Important Information

Before use or storage, review the Usage Guidelines for FilmTec™ 8” Elements, Start-Up Sequence, and Storage and Shipping of New FilmTec™ Elements documents.

The use of this product does not inherently guarantee the removal of cysts and pathogens; effective reduction depends on complete system design, operation, and maintenance. Any concentrate or permeate from the first hour of operation should be discarded.

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

Official datasheet (PDF)

PDF datasheet