Description
The FILMTEC™ NF270-400 element is a high area, high productivity element designed to remove a high percentage of TOC and THM precursors while having a medium to high salt
passage; medium hardness passage.
The FILMTEC NF270-400 element is an ideal element for surface and ground water applications where good organic removal is desired with partial softening in order to maintain
a minimum level of hardness for organoleptic properties and preservation of distribution networks.
The high active area membrane combined with low net driving pressure of the membrane allows the removal of these compounds at low operating pressure.
Product Type
Polyamide Thin-Film Composite
Dimension
40 in x 7.9 in
Product Specifications
12,50047.3993.07.0
| Applied Pressure |
Permeate Flow Rate |
Typical Stabilized Salt Rejection (%) |
||
| (psig) | (bar) | (GPD) | (m³/h) | |
Operating and Cleaning Limits
| Maximum Operating Temperature |
Maximum Operating Pressure |
Maximum Feed Flow Rate |
Maximum Pressure Drop |
pH Range, Continuous Operation |
pH Range, Short-Term Cleaning (30 min.) |
Maximum Feed Silt Density Index (SDI) |
Free Chlorine Tolerance |
| 113°F (45°C) | 600 psig (41 bar) | 70 gpm (15.9 m³/hr) | 15 psig (1.0 bar) | 3 - 10 | 1 - 12 | SDI 5 | < 0.1 ppm |
• Maximum temperature for continuous operation above pH 10 is 95°F (35°C).
• Refer to Cleaning Guidelines in specification sheet 609-23010.
• Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Since oxidation damage is not covered under warranty, FilmTec recommends removing residual free chlorine by pretreatment prior to membrane exposure. Please refer to technical bulletin 609-22010 for more information.