DOW Filmtec SW30HRLE-4040 Seawater RO Membrane 1600 GPD 4.0x40 Inch 99.75% Salt Rejection
The DOW Filmtec SW30HRLE-4040 is a premium 4.0" x 40" seawater reverse osmosis membrane element delivering up to 1,600 gallons per day (6.1 m³/day) of purified water. Engineered for medium-scale desalination systems producing less than 10 gpm, this membrane operates at 800-1,200 psi with exceptional 99.75% salt rejection.
- 1,600 GPD Capacity: High productivity for efficient water production
- 1,200 psi Maximum Pressure: Robust operation under high-pressure conditions
- 99.75% Salt Rejection: Superior purification performance
- 92% Boron Rejection: Meets WHO drinking water standards
- Enhanced Cleanability: Extended membrane lifespan and reduced maintenance
- Energy Efficient: High flux design reduces operational energy requirements
- Oxidative Treatment-Free: Maintains high performance without chemical post-treatments
| Specification | Value |
|---|---|
| Model / Part Number | Dupont Dow SW30HRLE-4040 [Part 255048] |
| Dimensions (Diameter x Length) | 4.0" x 40" (actual 3.9" x 40") |
| Permeate Flow Rate | 1,600 GPD (6,057 L/day, 6.1 m³/day) |
| Maximum Operating Pressure | 1,200 psi (83 bar) |
| Applied Pressure | 800 psi (55 bar) |
| Stabilized Salt Rejection | 99.60% - 99.75% |
| Maximum Feed Flow Rate | 16 gpm (3.6 m³/hr) |
| Operating Temperature | 113°F (45°C) maximum |
| pH Range (Continuous) | 2 - 11 |
| Active Surface Area | 85.0 ft² (7.9 m²) |
| Membrane Material | Polyamide Thin-Film Composite |
| Feed Spacer | 28 mil |
| Maximum SDI | 5 SDI |
| Free Chlorine Tolerance | < 0.1 ppm |
** pH 1-11 for CIP cleaning at 30°C maximum
*** Maximum 1,000 ppm-hr exposure
This 4-inch diameter seawater RO element is derived from the industry-leading SW30HRLE-400 model, offering an optimal balance of high salt rejection and productivity. The advanced membrane technology combined with automated precision fabrication ensures reliable performance for purifying high-salinity water sources, making it ideal for marine desalination, coastal water treatment, and industrial water purification applications.
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