FILMTEC™ BW30-400/34i

The FILMTEC BW30-400/34i element is the ultimate element for durable, high-rejection, high-productivity performance in high fouling or challenging feed conditions, enabling trouble-free operation and low cost of water.

  • Features a 34 mil feed spacer to lessen the impact of fouling on pressure drop across a vessel and enhance cleaning effectiveness.
  • Offers the proven performance and high productivity of the FILMTEC BW30 membrane.
  • Delivers a lower total cost of water by enabling lower capital and/or operating expenses compared to 365 sq. ft. elements.
  • Includes iLEC™ interlocking endcaps, which reduce system operating costs and the risk of o-ring leaks that can cause poor water quality.
Product Name Nominal Active Surface Area
ft2 (m2)		 Permeate Flow Rate
gpd (m3/d)		 Stabilized Salt Rejection
(%)		 Minimum Salt Rejection
(%)
FILMTEC BW30-400/34i 400 (37) 10,500 (40) 99.5 99.0
1. Permeate flow and salt rejection based on the following test conditions: 2000 ppm NaCl, 225 psi (15.5 bar), 77°F (25°C), pH 8, and 15% recovery.
2. Flow rates for individual elements may vary but will be no more than 15% below the value shown.
3. Sales specifications may vary as design revisions take place.
4. Active area guaranteed +/-5%. Active area as stated by FilmTec is not comparable to nominal membrane area often stated by some manufacturers. Measurement method described in Form No. 609-00434 (4223KB PDF).




These membranes may be subject to drinking water application restrictions in some countries: please check the application status before use and sale.


®™* Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow
Related Links
Datasheet – English (58KB PDF)
Datasheet – 中文 (257KB PDF)

Case History 1 – English (327KB PDF)
Case History 2 – English (498KB PDF)
Case History 3 – English (212KB PDF)
Case History 4 – English (198KB PDF)