LG BW 400 R

High Rejection Brackish Water Reverse Osmosis (BWRO) Membrane Element

LG Chem’s NanoH2OTM brackish water RO membranes lower the cost of desalination by improving energy efficiency and productivity. These thin-film nanocomposite (TFN) membranes feature benign nanomaterials incorporated into the thin-film polyamide layer of a composite membrane. This innovative patented and patent-pending technology significantly increases membrane permeability while offering superior salt rejection.
  • Matches industry-standard flux and rejection
  • Easy to retrofit existing systems
  • Well suited for low quality feed water or varying operating conditions


Product Specifications

LG BW 400 R
Active Membrane Area 37 m² (400 ft²)
Permeate Flow Rate 39.7 m³/d (10,500 gpd)
Minimum NaCI Rejection 99.5%
Stabilized NaCI Rejection 99.6%
Feed Spacer 34mil
Note: The above values are normalized to the following conditions: 2,000 ppm NaCl, 15.5 bar (225 psi), 25°C (77°F), pH 8, 15% recovery. Permeate flows for individual elements may vary +/- 15%.

Operating Specifications

LG BW 400 R
Max. Operating Pressure 41 bar (600 psig)
Max. Chlorine Concentration < 0.1 ppm
Max. Operating Temperature 45°C (113°F)
pH Range, Continuous (Cleaning) 2-11 (2-12)
Max. Feedwater Turbidity 1.0 NTU
Max. Feedwater SDI (15 minutes) 5.0
Max. Feed Flow 19.0 m³/h (85 GPM)
Max. Pressure Drop for Each Element 1.0 bar (15 psi)

Product Dimensions

LG BW 400 R
Length 101.6 cm (40 in.)
Element Outside Diameter (O.D.) 200 mm (7.9 in.)
Permeate Tube Inside Diameter (I.D.) 28.6 mm (1.125 in.)
Weight 16.4 kg (36 lbs.)