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DOW FILMTEC™ brackish water reverse osmosis membrane elements provide consistent, outstanding system performance in light industrial applications.
DOW FILMTEC LE-4040 delivers highest performance at lowest pressure resulting in less energy usage and lower costs.
DOW FILMTEC BW30-4040 is the industry standard for reliable operation and production of the highest quality water.
DOW FILMTEC BW30-2540 elements are designed for systems smaller than
1gpm (0.2 m3/h) offering a hard shell exterior for extra strength.
Product | Part Number | Feed Spacer Thickness (mil) | Permeate Flow Rate gpd (m3/d) | Stabilized Salt Rejection (%) |
LE-4040 | 275173 | 34 | 2,500 (9.5) | 99.0 |
BW30-4040 | 80783 | 34 | 2,400 (9.1) | 99.5 |
BW30-2540 | 80766 | 28 | 850 (3.2) | 99.5 |
1. Permeate flow and salt rejection based on the following test conditions: 2,000 ppm NaCl, applied pressure: 150 psig (10.3 bar) for LE-4040 and 225 psig (15.5 bar) for BW30-4040 and BW30-2540, 77°F (25°C) and 15% recovery.
2. Permeate flows for individual elements may vary +/-20%.
3. For the purpose of improvement, specifications may be updated periodically.
BW30-400 elements deliver high flow and high rejection without being chlorinated during the manufacturing process. This is one reason why DOW FILMTEC elements are more durable and may be cleaned over a wider pH range (pH 1-13) than other RO elements.
With more than a decade of proven performance, BW30-400 is the product you can rely on for years of trouble-free operation.
Product |
Part number | Active area ft2 (m2) | Feed spacer thickness (mil) | Permeate flow rate gpd (m3/d) | Stabilized salt rejection (%) | Minimum salt rejection (%) |
BW30-400 | 98650 | 400 (37) | 28 | 10,500 (40) | 99.5% | 99.0% |
1. Permeate flow and salt rejection based on the following standard conditions: 2,000 ppm NaCl, 225 psi (15.5 bar), 77°F (25°C), pH 8 and 15% recovery.
2. Flow rates for individual elements may vary but will be no more than 15% below the value shown.
3. Sales specifications may vary as design revisions take place.
4. Active area guaranteed +/-3%. Active area as stated by Dow is not comparable to nominal membrane area often stated by some manufacturers. Measurement method described in Form No. 609-00434.
The BW30-365 is best suited for systems operating on challenging feed streams, where reliable pretreatment is not an option, or where maximum cleanability delivers value.
Features the industry's thickest feed spacer (34mil) to lessen the impact of fouling.
Product |
Part number | Active area ft2 (m2) | Feed spacer thickness (mil) | Permeate flow rate gpd (m3/d) | Stabilized salt rejection (%) | Minimum salt rejection (%) |
BW30-365 | 80773 | 365 (34) | 34 | 9,500 (36) | 99.5% | 99.0% |
1. Permeate flow and salt rejection based on the following standard conditions: 2,000 ppm NaCl, 225 psi (15.3 bar), 77°F (25°C), pH 8 and 15% recovery.
2. Flow rates for individual elements may vary but will be no more than 15% below the value shown.
3. Sales specifications may vary as design revisions take place.
4. Active area guaranteed +/-3%. Active area as stated by Dow is not comparable to nominal membrane area often stated by some manufacturers. Measurement method described in Form No. 609-00434.
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