Equivalent LG SW 440 R G2 Industry-leading seawater RO membrane with balanced salt rejection and productivity

Introduction:

RO membrane, also known as reverse osmosis membrane, is one of the most precise membrane separation technologies in the field of water treatment. Its pore size is approximately 0.0001 μm, which is much smaller than the diameters of bacteria, viruses, and most ions.

It is driven by pressure difference and achieves efficient sieving and separation through semi-permeable membranes: under a pressure higher than the osmotic pressure of the solution, only water molecules can pass through, while most soluble salts, heavy metal ions, bacteria, viruses, antibiotics, organic substances, etc., which are harmful to the water, are almost completely retained. Thus, it achieves the purposes of water purification, desalination, and purification.

RO membrane can efficiently desalinate and is widely used in scenarios such as seawater desalination, brackish water purification, boiler pure water preparation, ultra-pure water production, municipal direct drinking water, and industrial wastewater reuse. It is the core component for preparing high-quality pure water and is also the most reliable technical choice for desalination and deep purification in current water purification systems.

Application:

Seawater desalination, brackish water purification, boiler pure water preparation, ultra-pure water production, municipal direct drinking water, and industrial wastewater reuse.

Technical data:

Item: reverse osmosis membrane

Type: replacement LG SW 440 R G2

Vendor’s P/N: LFSW-440RG-2

OD: 7.9 inch

ID: 1.125 inch

Length: 40 inch

Membrane type: Polyamide thin-film composite

Membrane area: 440ft2 (41m2)

Salt rejection: 99.88%

Minimum salt rejection: 99.75%

Permeate flow rate: 9,900gpd (37.5m3/d)

Operating limits:

Maximum Applied Pressure: 1,200 psi (82.7 bar)

Maximum Chlorine Concentration: < 0.1 ppm

Maximum Operating Temperature: 45°C (113°F)

pH Range, Continuous Operation: 2–11

pH Range, Cleaning: 2–13

Maximum Feed Water Turbidity: 1.0 NTU

Maximum Feed Water SDI: 5.0

Maximum Feed Flow: 75 gpm (17 m³/h)

Maximum Pressure Drop (ΔP) for Each Element: 15 psi (1.0 bar)

Drawing:

Other models available:

LG BW 2540 R

LG BW 4040 R / ES / UES / AFR

LG BW 4021 R

LG BW 400 R / ES / AFR G2

LG BW 440 R / ES

LG SW 400 R / GR / SR / ES

LG SW 440 R / GR / SR / ES

LG SW 4040 R

LG NF9

P0615-S

P0717-S

P0915-S / IP

P0920-S / IP

P1010-S

P1015-S

P1020-S