FilmTec™ NF270-400/34i

Spiral-wound element with polypiperazine thin-film composite membrane


General Information

  • Provides organic removal with partial softening in order to maintain a minimum level of hardness for organoleptic properties and preservation of distribution networks.
  • Delivers high productivity, cleanability and low energy consumption due to its high active area and wide cleaning pH range (1-12) tolerance.
  • Includes iLEC™ interlocking end caps, reducing system operating costs and the risk of o-ring leaks that can cause poor water quality.



Operating and Cleaning Limits
Maximum Operating Temperature  113°F (45°C)
Maximum Operating Pressure  600 psig (41 bar)
Maximum Element Pressure Drop 15 psig (1.0 bar)
pH Range
Continuous Operation
Short-Term Cleaning (30 min)
3 – 10
1 – 12
Maximum Feed Silt Density Index (SDI  SDI 5
Free Chlorine Tolerance  < 0.1 ppm