LG BW 4040 AFR 225 PSI 2,300 GPD 4 x 40 inch LG Chem Membranes
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🏢 LG BW 4040 AFR Anti-Fouling Brackish Water RO Membrane
The LG BW 4040 AFR is a high-performance 4-inch reverse osmosis element specifically engineered for challenging brackish water and water reuse applications. Utilizing LG Chem’s innovative Thin Film Nanocomposite (TFN) technology, this membrane provides a combination of ultra-high salt rejection and enhanced fouling resistance. The "AFR" (Anti-Fouling/High Rejection) designation highlights its ability to maintain stable permeate flux and high water quality even when treating feedwater with high biological or organic fouling potential.
Designed with a robust fiberglass hard-shell exterior, the LG BW 4040 AFR is built for durability in demanding industrial and commercial environments. It features an active membrane area of 75.3 square feet and a high-permeability surface that delivers a permeate flow rate of 2,300 gallons per day. This element is an ideal solution for light industrial process water, boiler feed makeup, and wastewater reclamation projects where consistent, long-term reliability and reduced maintenance intervals are critical for operational efficiency.
| SPECIFICATION |
DETAILS |
| Model Number |
LG BW 4040 AFR |
| Manufacturer |
LG Chem (LG Water Solutions) |
| Membrane Type |
Thin Film Nanocomposite (TFN) |
| Element Dimensions |
4.0" Diameter x 40" Length |
| Permeate Flow Rate |
2,300 GPD (8.7 m³/d) |
| Stabilized Salt Rejection |
99.6% |
| Minimum Salt Rejection |
99.3% |
| Active Surface Area |
75.3 ft² (7.0 m²) |
| Test Pressure |
225 psi (15.5 bar) |
| Max Operating Pressure |
600 psi (41 bar) |
| Max Operating Temp |
113°F (45°C) |
| pH Range (Continuous) |
2 – 11 |
| pH Range (Cleaning) |
2 – 12 |
