LC LE-4040 FilmTec DOW / DuPont 125 PSI 2,500 GPD 4 inch x 40 inch Membranes
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🏢 FilmTec™ LC LE-4040 Commercial Reverse Osmosis Membrane
The FilmTec™ LC LE-4040 (Large Commercial, Low Energy) is a high-productivity reverse osmosis element designed to provide high-quality water for commercial and light industrial applications. This 4-inch diameter membrane is engineered to operate at significantly lower pressures compared to standard brackish water elements, allowing for substantial energy savings and reduced operating costs without sacrificing permeate quality.
Utilizing DuPont’s advanced thin-film composite polyamide technology, the LC LE-4040 is ideal for applications requiring consistent performance in harsh water conditions. With an industry-leading active surface area of 94 square feet, this element reduces fouling by operating at a lower flux while maintaining high flow rates. Its fiberglass hard-shell exterior provides the structural integrity necessary for systems with multiple-element housings, ensuring the membrane can withstand high pressure drops and frequent cleaning cycles.
| SPECIFICATION |
DETAILS |
| Model Number |
LC LE-4040 / LC LE PRO-4040 |
| Manufacturer |
FilmTec™ (DuPont) |
| Membrane Type |
Polyamide Thin-Film Composite |
| Element Dimensions |
4.0" Diameter x 40" Length |
| Permeate Flow Rate |
2,500 GPD (9.5 m³/d) |
| Stabilized Salt Rejection |
99.2% |
| Minimum Salt Rejection |
99.0% |
| Active Surface Area |
94 ft² (8.7 m²) |
| Feed Spacer Thickness |
28 mil |
| Test Pressure |
125 psi (8.6 bar) |
| Max Operating Pressure |
600 psi (41 bar) |
| Max Operating Temp |
113°F (45°C) |
| pH Range (Continuous) |
2 – 11 |
| pH Range (Cleaning) |
1 – 13 |
