DuPont FilmTec™ SW30HRLE-440i Seawater Reverse Osmosis Membrane Element
Optimized combination of water production and permeate quality. Built on a durable polyamide thin-film composite membrane, the SW30HRLE-440i is engineered by DuPont Water Solutions for reliable, long-term performance in seawater desalination and high-salinity water treatment.
📄 Download the DuPont Product Datasheet (PDF)
Performance Specifications
| Specification | Value |
|---|---|
| Manufacturer | DuPont Water Solutions (FilmTec™) |
| Element Size | 8 inch x 40 inch |
| Membrane Type | Polyamide Thin-Film Composite |
| Active Membrane Area | 440 ft2 (41 m2) |
| Permeate Flow Rate | 8,000 gpd (30.2 m3/d) |
| Stabilized Salt Rejection | 99.80 % |
| Minimum Salt Rejection | 99.65 % |
| Shipping Weight | ~30 lbs (boxed) |
| Shipping Dimensions | 10" × 44" × 10" (boxed W × L × D) |
| HS Code (Tariff) | 8421.21.0000 — water filtering/purifying apparatus |
| Warranty | 1-Year materials & workmanship; 3-Year prorated performance warranty from DuPont (commercial elements, per DuPont conditions) |
Operating & Limiting Conditions
| Parameter | Limit |
|---|---|
| Maximum Operating Temperature | 113°F (45°C) |
| Maximum Operating Pressure | 1,200 psi (83 bar) |
| Maximum Pressure Drop | 15 psi (1.0 bar) per element; 50 psi (3.5 bar) per pressure vessel (minimum 4 elements) |
| Maximum Feed Silt Density Index (SDI) | SDI 5 |
| Free Chlorine Tolerance | < 0.1 ppm |
| pH Range — Continuous Operation | 2 - 11 |
| pH Range — Short-Term Cleaning | 1 - 13 |
Physical Dimensions
| Dimension | Value |
|---|---|
| Overall Length | 40.0 inches (1,016 mm) |
| Outer Diameter | 7.9 inches (201 mm) |
| Permeate Tube | 1.125 inches ID (29 mm) |
| Fits Pressure Vessel | nominal 8-inch I.D. |
Performance based on DuPont standard test conditions: 32,000 ppm NaCl, 5 ppm boron, 800 psi (55 bar), 77°F (25°C), pH 8, 8% recovery. Individual element flow may vary. Reference: official DuPont Product Data Sheet.
Typical Applications
- Seawater desalination for municipal and industrial applications
- Suitable for medium and high feed water salinity
- Offers balance between permeate quality and energy consumption
- Applicable for optimized Internally Staged Designs (ISD) in combination with other FilmTec seawater membranes
- Seawater reverse osmosis (SWRO) desalination
- Marine and offshore watermakers
- High-salinity industrial feed water
- Internally Staged Design (ISD) seawater trains
Frequently Asked Questions
What is the DuPont FilmTec SW30HRLE-440I-DRY?
It is a 8 inch x 40 inch seawater reverse osmosis membrane element from DuPont Water Solutions, producing up to 8,000 gpd (30.2 m3/d) at 99.80 % rejection.
What is the rated flow?
Up to 8,000 gpd (30.2 m3/d) at DuPont standard test conditions (32,000 ppm NaCl, 5 ppm boron, 800 psi (55 bar), 77°F (25°C), pH 8, 8% recovery).
What rejection does it achieve?
99.80 % stabilized, 99.65 % minimum.
What pressure vessel does it fit?
A nominal 8-inch I.D. RO pressure vessel.
What is the price of the SW30HRLE-440I-DRY?
Contact ForeverPure at 408-969-2688 or sales@foreverpureplace.com for current pricing and availability.
