LG Water Solutions,LG Chem


    LG MOST is a suite of RO membrane products by LG Water Solutions that delivers unparalleled productivity to maximize energy savings.

    Developed from LG Chem’s breakthrough thin-film nanocomposite (TFN) technology, LG BW MOST features the industry’s highest flow BWRO membrane. The RO element also incorporates a proprietary low dP feed spacer technology designed to optimize the flow regime on the membrane surface. The results are ultra-low feed pressures that are unrivaled in the industry.

    LG BW MOST dramatically improves system productivity or reduces energy consumption for significant savings in the total cost of plant ownership. Maximize Plant Uptime with LG BW MOST.


Product Specifications
Active Membrane Area 400 ft² (37 m²)
Permeate Flow Rate 13,200 gpd (49.9 m³/d)
Stabilized Salt Rejection 98.5%
Minimum Salt Rejection 97.0%
Feed Spacer 34(low dP) mil
Test Conditions
NaCl 2,000 ppm
Pressure 125 psi (8.6 bar)
Temperature 25°C (77°F)
pH 7
Recovery 15%
Permeate Flow Variation >20%
Operating Specifications
Max. Operating Pressure 600 psi (41 bar)
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 75 gpm (17 m³/h)
Max. Pressure Drop for Each Element 15 psi (1.0 bar)
Product Dimensions
Length 1,016 mm (40 inch)
Element O.D. 200 mm (7.9 inch)
Permeate Tube I.D. 28.6 mm (1.125 inch)
Weight 16 kg (35 lbs.)