LG BW 4040 ES 150 PSI 2,500 GPD 4 x 40 inch LG Chem Water Solutions Membranes
PLEASE REFERENCE DATA SHEET AND TABLE BELOW
💧 LG BW 4040 ES Reverse Osmosis Membrane
Product Description
The LG BW 4040 ES is a premium 4-inch by 40-inch Energy Saving (ES) Brackish Water Reverse Osmosis (RO) element from LG Water Solutions. This membrane is engineered for commercial and light industrial applications requiring both high water quality and low operating costs.
This LG element incorporates the company's patented Thin Film Nanocomposite (TFN) technology. By embedding benign nanomaterials within the polyamide layer, the TFN membrane achieves superior permeability and high flux without sacrificing salt rejection. This results in significant energy savings while ensuring superior water quality.
The LG BW 4040 ES provides an impressive stabilized salt rejection of 99.5% and delivers a permeate flow rate of 2,500 GPD when tested at a low 150 PSI applied pressure. This combination makes it an ideal, high-performance alternative for use in existing standard 4040 RO systems where energy reduction is a primary goal.
📋 Specifications Table
| Characteristic |
Specification |
Units / Notes |
| Manufacturer |
LG Chem (LG Water Solutions) |
- |
| Model Number |
BW 4040 ES |
Brackish Water (BW), Energy Saving (ES) |
| Product Type |
Low-Energy Brackish RO |
Thin Film Nanocomposite (TFN) |
| Size (Dia. x Length) |
4 x 40 |
Inch |
| Nominal Permeate Flow |
2,500 (9.5) |
GPD (m3/d) |
| Stabilized Salt Rejection |
99.5 |
% |
| Minimum Salt Rejection |
99.2 |
% |
| Active Membrane Area |
85 (7.9) |
ft2(m2) |
| Max Applied Pressure |
600 (41) |
PSI (Bar) |
| Test Pressure |
150 (10.3) |
PSI (Bar) |
| Max Operating Temp |
113 (45) |
∘F(∘C) |
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