Filmtec BW30-365 RO Membranes

DuPont Filmtec BW30-365 Brackish Water Reverse Osmosis 8″ Membrane.
DuPont FILTMEC BW30-365 Element is ideal for reverse osmosis plant managers and operators dealing with challenging water and seeking consistent, high performance and long element life.

  • Delivers consistent water quality and higher rejection and flow
  • Based on historical FilmTec BW30 industry-standard RO membrane with decades of proven performance
  • Outstanding durability resulting in stable, long-term performance and sustainable water solutions


DOW FILMTEC™ Brackish Water Reverse Osmosis Membranes are 8 inch elements that can separate salts from water and are produced with an automated fabrication process that ensures long life, precision, consistency, and reliability. They are ideal for use in large-scale industrial and municipal RO system used for water treatment systems that produce greater than approximately 10 gpm (2300 L/h) of permeate. Our high efficiency RO membranes build on a tradition of leadership in the thin-film composite membrane filtration industry and meet today’s challenges for higher rejection using less energy and resisting fouling in challenging waters.
Ideal for RO water treatment plants and municipal water filtration applications in Dubai, dealing with challenging water and seeking consistent, high performance and long element life.

Product Specifications

  • Product type: BW30-365
  • Active Area ft2 (m2): 365 (34)
  • Feed Spacer: 34 mil
  • Permeate flow rate gpd (m3/d): 9,500 (36)
  • Stabilized salt rejection: 99.5%
  • Minimum salt rejection: 99.0%


Filmtec BW30-365 RO Specifications

Operating Limits

  • Membrane Type: Polyamide Thin-Film Composite
  • Maximum Operating Temperature: 113°F (45°C)
  • Maximum Operating Pressure: 600 psig (41 bar)
  • Maximum Pressure Drop: 15 psig (1.0 bar)
  • pH Range, Continuous Operation: 2 – 11
  • pH Range, Short-Term Cleaning (30 min.): 1 – 13
  • Maximum Feed Flow: 65 gpm (15 m3/hr)
  • Maximum Feed Silt Density Index: SDI 5
  • Free Chlorine Tolerance: < 0.1 ppm

Key Applications

  • Product replacement in existing systems
  • Demineralization for industrial applications, such as: Power Generation, Steel & Metal, Chemical & Petrochemical


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