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XFRLE-400-34i

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 Specifications

 

 

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.