DuPont
SW30-4040 DuPont FilmTec™ 2,400 GPD at 800 PSI 4 x 40 inch 99.4% Rejection Membranes
SW30-4040 DuPont FilmTec™ 2,400 GPD at 800 PSI 4 x 40 inch 99.4% Rejection Membranes
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The DuPont FilmTec SW30-4040 is a premier Seawater Reverse Osmosis (SWRO) membrane element, built for efficiency and high salt rejection in commercial and light industrial systems. As a standard 4-inch diameter by 40-inch long element, the SW30-4040 utilizes a high-surface-area thin-film composite (TFC) membrane to deliver a substantial flow rate of 2,400 GPD under standard test conditions (800 PSI).
Specifications Table
| Characteristic | Specification | Units / Notes |
| Model | SW30-4040 | Seawater RO (SWRO) |
| Membrane Type | Polyamide Thin-Film Composite | Fiberglass Outer Wrap |
| Element Dimensions (Nominal) | 4.0×40 | inches |
| Active Area | 78 (7.2) | sq ft (sq m) |
| Permeate Flow Rate (Nominal) | 2,400 (9.1) | GPD (m3/day). ±20% tolerance |
| Stabilized Salt Rejection | 99.4 | % (Minimum 99.2%) |
| Applied Pressure (Test) | 800 (55) | PSI (Bar) |
| Max Operating Pressure | 1,000 (69) | PSI (Bar) |
| Max Operating Temperature | 113 (45) | F (C) |
| Continuous pH Range | 2−11 | - |
| Max Feed Flow Rate | 16 (3.6) | GPM (m3/hr) |
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