FILMTEC BW30FR-400/34i Membrane Elements

BW30FR-400-34i

Element Features

  • A wide 34 mil feed spacer to lessen the impact of fouling and enhance cleaning effectiveness.
  • 400 square feet active area for more productivity without increasing the operating flux.
  • High rejection DOW FILMTEC RO membrane that has one of the widest pH cleaning ranges in the industry (pH 1-13) that allows for effective cleaning of scale, organic compounds and biofilm.
  • Automated, precision fabrication with a greater number of shorter membrane leaves, reduces the overall effect of fouling and maximizes membrane efficiency.
  • iLEC™ interlocking endcaps, which reduce system operating costs and the risk of o-ring leaks that compromise system integrity and cause 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 (%)
BW30FR-400/34i 273805 10.0 (254) 34 10,500 (40) 99.5 99.0

Dimensions – inches (mm)

Product A B C D
BW30FR-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.

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