DOW FILMTEC™ BW30-400/34i Industrial BWRO Membrane Element
DOW FILMTEC BW30-400/34i elements are the product of choice when high quality permeates are required. It is widely used in new equipment and retrofits where system capital and productivity are factors. DOW FILTMEC BW30-400/34i Element is ideal for reverse osmosis plant managers and operators dealing with challenging water and seeking consistent, high performance and long element life. With decades of proven performance, DOW FILMTEC™ BW30-400/34i delivers high quality permeate water while minimizing CAPEX. DOW FILMTEC BW30-400/34i also offers the most effective cleaning performance, robustness and durability due to its widest cleaning pH range (1-13) tolerance and the support of Dow technical representatives.
DOW FILMTEC Brackish Water Reverse Osmosis 8" Elements can separate salts from water and are produced with an automated fabrication process that ensures precision, consistency, and reliability. They are ideal for use in large-scale industrial and municipal water treatment systems that produce greater than approximately 10 gpm (2300 L/h) of permeate. Our RO membranes build on a tradition of leadership in the thin-film composite membrane industry and meet today's challenges for higher rejection using less energy and resisting foulants in challenging waters.
BW30-400/34i is iLEC interlocking style for direct connection of membranes in multi-element housings.
 
DOW FILMTEC BW30-400/34i is FDA – 21 CFR 177.2550; Food and Drug Administration Compliant.
  
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Specifications for BW30-400/34i
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FilmTec Product: |
BW30-400/34i |
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Size (Approximate): |
8" Dia. x 40"L |
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Flow Rate: |
10,500 gpd (36 m³/d) |
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Applied Pressure: |
225 psig (15.3 bar) |
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Stabilized Salt Rejection: |
99.5% |
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Minimum Salt Rejection: |
99.0% |
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Active Surface Area: |
400 Sq. Ft. |
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Single Element Recovery: |
15% |
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End Style: |
iLEC Interclocking |
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Exterior: |
Hard Shell Fiberglass |
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Feed Spacer: |
34 mil |
Membrane Type:
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Polyamide Thin-Film
Composite |
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Permeate flow and salt rejection based: 2,000 ppm NaCl feed stream, 77°F, 15% recovery, 225 psig.
Operating Limits for BW30-400/34i
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Maximum Operating Temperature: |
113°F (45°C) |
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Maximum Operating Pressure: |
600 psig (41 bar) |
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Maximum Pressure Drop: |
15 psig (1 bar) |
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Maximum Feed Flow Rate: |
85 gpm (19m³/h) |
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pH Range, Continuous Operation*: |
2-11 |
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pH Range, Short-Term Cleaning**: |
1-13 |
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Maximum Feed Silt Density Index: |
SDI 5 |
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Fere Clorine Tolerance***: |
<0.1ppm |
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*Maximum temperature for continuous operation above pH 10 is 95°F
**Refer to cleaning guidelines.
***Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Since oxidation damage is not covered under warranty, Dow recommends removing residual free chlorine by pretreatment prior to membrane exposure.
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