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  Top » Catalog » Membranes » FILMTEC/DOW RO Membranes » DOW FilmTec Full-Fit Sanitary RO Elements (4" & 8") » RO-390-FF

8"x40" | Full-Fit | Sanitary| 10,800 GPD | FilmTec RO Membrane

8"x40" | Full-Fit | Sanitary| 10,800 GPD | FilmTec RO Membrane
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Model RO-390-FF
Price $1,531.00 
Manufacturer DOW Filmtec
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DOW FilmTec Membrane Elements

DOW FILMTEC™  RO-390-FF Elements for Evaporator Condensate Polishing and Sanitary Applications

DOW FILMTEC™ RO-390-FF Elements are the premier membrane for evaporator condensate polishing. With more active area than competitive elements, DOW FILMTEC RO-390-FF can 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 requirements and are suitable for use in food processing applications in the U.S. DOW FILMTEC RO-390-FF delivers high flux and exceptional quality water for applications requiring sanitary grade membrane elements.

Product Specifications

DOW FILMTEC RO-390-FF is FDA – 21 CFR 177.2550; Food and Drug Administration Compliant.

FilmTec Membranes are FDA Compliant     Genuine DOW FilmTec Membrane Element   


Common Applications for FilmTec RO-390-FF Sanitary-Grade Elements:

  • Evaporator Condensate Polishing
  • Sanitary Applications
  • Food Pocessing

Benefits of DOW Full-Fit RO Elements:

  • High flux results in high yields
  • Full-Fit Sanitary-Grade Design
  • Consistant FilmTec performance and quality from automated rolling

Specifications for RO-390-FF

FilmTec Product: RO-390-FF
FilmTec Part Number: 116314, 100608
Replaces Part Numbers:
Size (Approximate): 8" Dia. x 40"L
Flow Rate: 10,800 gpd (40.9 m³/d)
Applied Pressure: 225 psig (16 bar)
Stabilized Salt Rejection: 99.5%
Minimum Salt Rejection: 98.0%
End Style/PWT: Standard Flush 1.125" ID
Exterior: Cage-Wrapped
Active Membrane Area:390  sq. ft.
Product Type: Spiral-Wound Element 
Membrane Type: Thin-Film Composite 

Permeate flow and salt rejection based:  32,000 ppm NaCl feed stream, 5ppm boron, 77°F, 8% recovery, 800 psig, pH 8.


Operating Limits for RO-390-FF

Maximum Operating Temperature: 113°F (45°C)
Maximum Operating Pressure: 600 psig (41 bar)
Maximum Pressure Drop: 15 psig (1 bar)
Maximum Feed Turbidity: 1 NTU
pH Range, Continuous Operation: 3-10
pH Range, Short-Term Cleaning*: 1-12
Maximum Feed Silt Density Index: 5 SDI
Fere Clorine Tolerance: 0

*Refer to cleaning guidelines.


Physical Dimensions of DOW FilmTec RO-390-FF

DOW FilmTec Full Fit Sanitary RO Membrane Drawing  
A 40.0 (1,016)
B 1.125 (28.58) ID
C 7.9 (200)

RO-390-FF fits nominal 8-Inch ID pressure vessels.

For more information, please visit this products webpage.

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DOW Filmtec

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