DuPont
BW30-400 FilmTec™ DOW / DuPont Brackish Water Membranes 225 PSI at 10,500 GPD 8 x 40 inch
BW30-400 FilmTec™ DOW / DuPont Brackish Water Membranes 225 PSI at 10,500 GPD 8 x 40 inch
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BW30-400 FilmTec™ DOW / DuPont Brackish Water Membranes 225 PSI at 10,500 GPD 8 x 40 inch
DuPont FilmTec BW30-400 (Brackish Water RO Membrane)
Product Description
The DuPont FilmTec BW30-400 is the industry-standard, high-rejection Reverse Osmosis (RO) element for treating brackish water in large commercial and industrial systems. As an 8-inch diameter by 40-inch long element, the BW30-400 features a highly effective thin-film composite (TFC) membrane that delivers superior water quality and proven durability.
This element is designed for optimal performance, providing a high nominal flow rate of 10,000 GPD and achieving a stabilized salt rejection of 99.5% under standard test conditions (225 PSI). Its robust construction and reliable performance make it the preferred choice for a wide range of applications, including municipal drinking water, industrial process water purification, power generation, and wastewater reclamation. The BW30-400 offers excellent value and is known for its long service life and high active membrane area.
Specifications Table
| Characteristic | Specification | Units / Notes |
| Model | BW30-400 | Standard Brackish Water RO |
| Membrane Type | Polyamide Thin-Film Composite | Fiberglass Outer Wrap |
| Element Dimensions (Nominal) | 8.0×40 | inches |
| Active Area | 400 (37) | sq ft (sq m) |
| Permeate Flow Rate (Nominal) | 10,000 (38) | GPD (m3/day). ±15% tolerance |
| Stabilized Salt Rejection | 99.5 | % (Minimum 99.4%) |
| Applied Pressure (Test) | 225 (15.5) | PSI (Bar) |
| Max Operating Pressure | 600 (41) | PSI (Bar) |
| Max Operating Temperature | 113 (45) | F (C) |
| Continuous pH Range | 2−11 | - |
| Max Feed Flow Rate | 75 (17) | GPM (m3/hr) |
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