FILMTEC XFRLE-400/34i Membrane Elements
Introduction
- Proven fouling resistance chemistry of the DOW FILMTEC BW30XFR-400/34i operating at over 30% lower pressure
- Large 34-mil spacer optimized for pressure drop minimization reducing the impact of fouling and enhancing the cleaning efficiency
- Wide chemical tolerance allowing effective and efficient cleaning of biofilms, organic compounds and scale at cleaning pH from 1 to 13
- High rejection of special solutes such as Nitrate, Ammonium or Silica
- High integrity achieved with proprietary iLEC™ technology (interlocking end-caps), minimizing the risk of o-ring leaks that can contribute to poor water quality
| Product | Part number | Active area ft2 (m2) |
Feed spacer thickness (mil) |
Permeate flow rate gpd (m3/d) |
Stabilized salt rejection (%) |
Minimum salt rejection (%) |
|---|---|---|---|---|---|---|
| XFRLE-400/34i | 347731 | 400 (37) | 34 | 11,500 (44) | 99.4 | 99.2 |
Typical Solute Rejections
| Silica rejection (%) | Nitrate rejection (%) | Ammonium rejection (%) | Isopropyl alcohol rejection (%) |
|---|---|---|---|
| 99.7 | 96.4 | 97.0 | 92 |
Dimensions – inches (mm)
| Product | A | B | C | D |
|---|---|---|---|---|
| XFRLE-400/34i | 40.0 (1,016) | 40.5 (1,029) | 7.9 (201) | 1.125 ID (29) |
Operating Limits:
- Membrane Type…………………………………………………Polyamide Thin-Film Composite
- Maximum Operating Temperaturea …………………………113˚F (45˚C)
- Maximum Operating Pressure…………………………………600 psig (41 bar)
- Maximum Pressure Drop………………………………………15 psig (1.0 bar)
- pH Range, Continuous Operationa…………………………….2 - 11
- pH Range, Short-Term Cleaning (30 min.)b………...............1 - 13
- Maximum Feed Silt Density Index……………………………..SDI 5
- Free Chlorine Tolerancec………………………………….....<0.1 ppm
a Maximum temperature for continuous operation above pH 10 is 95˚F (35˚C).
b Refer to Cleaning Guidelines in specification sheet 609-23010.
c 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, Dow Water & Process Solutions recommends removing residual free chlorine by pretreatment prior to membrane exposure.
Pure Aqua manufactures and supplies RO systems, and as a leading RO supplier in the sphere of development and implementation of
reverse osmosis and water treatment systems, Pure Aqua earned a great industry reputation in the RO market.
In all commercial and industrial RO systems that Pure Aqua supplies, we include a cleaning procedures in the operating and installation manual.
Pure Aqua, as a leader RO supplier, has a presence all over the world with a strong dealership network to help our customers.
© 2011 Pure Aqua, Inc. All Rights Reserved.