Dow Filmtec RO-390-FF Membrane
Filmtec Membrane
Dow Filmtec RO-390-FF Membrane, Filmtec RO-390-FF Membrane, Dow RO-390-FF Membrane, Filmtec RO-390-FF, Dow RO-390-FF
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 Dow Filmtec RO-390-FF Membrane


The DOW RO-390-FF product is a premier membrane for evaporator condensate polishing. RO-390-FF has more active area than competitive elements to maximize performance and reduce capital cost by requiring the fewest elements for polishing applications. All materials of construction are compliant with U.S. Food & Drug Administration indirect food contact ments and are suitable for use in food processing applications in the U.S.



·         Part number: 116314 / 100608

·         Nominal Active Surface Area: 390 (36) ft2 (m2)

·         Maximum Operating Pressure: 600 psi (41 bar)

·         Permeate Flow Rate: 10,800 (40.9) gpd (m3/d)

·         Stabilized Salt Rejection: 99.5 %

·         Membrane Type: Thin-Film Composite (Filmtech)

·         Maximum Operating Temperature: 113°F (45°C)

·         Maximum Feed Flow Rate: 6 (1.4) gpm (m3/h)

·         Maximum pressure drop: 15 psig (1.0 bar)

·         pH Range, Continuous Operation: 3-10

·         pH Range, Short Term Cleaning: 1-12

·         Maximum Feed Silt Density Index: SDI 5


RO-4040-FF was previously named BW30-4040-LW.
RO-390-FF s BW30-380-LW and BW30-8040-LW.
Permeate flow and salt rejection based on standard conditions: 2,000 ppm NaCl, 225 psi (16 bar), 77°F (25°C), pH 8 and 15% recovery.
Minimum stabilized salt rejection is 98.0%