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WaterSolutions DOW FILMTEC XFRLE-400/34i

The DOW FILMTEC™ XFRLE-400/34i reverse osmosis element embodies Dow’s latest innovations in treatment of challenging waters with high biological and organic fouling tendencies such as municipal or industrial wastewater or challenging surface water.

Nominal Active Surface Area ft² (m²)	Permeate Flow Rate gpd (m³/d)	Stabilized Salt Rejection (%)	Minimum Salt Rejection (%)
400 (37)	11,500 (44)	99.4	99.2

Permeate flow and salt (NaCl) rejection based on the following standard test conditions: 2000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 8 and 15% recovery.
For comparison, the XFRLE-400/34i will have permeate flow of 12,300 gpd (46.6 m³/d) and stabilized rejection of 99.4% when normalized to a feed solution of 1,500 ppm NaCl as used by some manufacturers.
Flow rates for individual elements may vary, but will be no more than +/-15%.
Sales specifications may vary as design revisions take place.
Active area guaranteed +/-3%. Active area as stated by Dow Water & Process Solutions is not comparable to nominal membrane area often stated by some manufacturers. Measurement method described in Form No. 609-00434 (168KB PDF).
Specific solute typical rejections based on the following standard test conditions: 2000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 7 and 15% recovery, 50 ppm SiO₂, or 100 ppm NO₃^-, or 100 ppm NH₄⁺, or 100 ppm IPA.

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Product Datasheet (PDF)
English (207KB)