DOW™ HYPERSHELL™ NF-8038

Summary

Product identification

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

The HYPERSHELL™NF245-8038-FF, NF245-390-FF, NF-8038-FF & NF-390-FF elements are constructed with a polypropylene outer shell and comply with FDA Indirect Food Contact regulations. Their design aims to:

• Minimize channeling & fluid bypass
• Prevent premature element failures throughout product lifetime
• Improve hydrodynamics of the element

HYPERSHELL™ elements exhibit less exterior bypassing and require approximately 30% less flow than mesh-wrapped elements for an equivalent pressure drop (at 4 psi delta P), potentially saving energy by reducing flow.

Operating limits

• Maximum Operating Pressure: 800 psig (54.8 bar)
• Maximum Operating Temperature:
  • pH 2 – 10: 122ºF (50ºC)
  • Above pH 10: 95ºF (35ºC)
• pH Range: pH 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 limits

• Maximum CIP Pressure: 15 – 75 psig (1 – 5 bar)
• Maximum CIP Temperature:
  • pH 1.8 – 11: 122ºF (50ºC)
  • pH 1.8 – 11.2: 113ºF (45ºC)
• 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

Mechanical / hydraulic

Element dimensions for HYPERSHELL™NF245-8038-FF and HYPERSHELL™NF-8038-FF:

• A: 38.00 in (965.0 mm)
• B: 1.125 in (28.58 mm)
• C: 7.9 in (200 mm)

HYPERSHELL™ elements are designed to fit schedule 40, 8-inch stainless steel pipe (nominal 7.98 inch ID).

Design Guidelines

• Maximum recirculation cross-flow for HYPERSHELL™ NF245-8038-FF and NF-8038-FF models: 80 gpm (18.2 m³/h)
• Maximum element ΔP for HYPERSHELL™ NF245-8038-FF and NF-8038-FF models: 13 psi (0.9 bar)
• Maximum pressure drop across an entire vessel: 60 psi (4.1 bar)

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

Official datasheet (PDF)

PDF datasheet