SKU: 83752407199

4"x40" Brackish Water | 2,500 GPD | 225 psi | 99.6% Rej | 85 ft2 | LG Chem RO Membrane

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Description

4"x40" Brackish Water | 2,500 GPD | 225 psi | 99.6% Rej | 85 ft2 | LG Chem RO MembraneLG Chem Nano H2O LG BW 4040 R Brackish Water (BWRO) Reverse Osmosis Membrane LG BW 4040 R High Rejection BWRO membranes offer a combination of high rejection, reliability, and durability; suitable for high salinity brackish water and wastewater reuse application. LG Chems NanoH2O brackish water RO membranes serve various municipal and industrial applications and major utilities around the world. LG BWRO membranes, all incorporated with innovative Thin


LG Chem Nano H2O LG BW 4040 R Brackish Water (BWRO) Reverse Osmosis Membrane

LG BW 4040 R High Rejection BWRO membranes offer a combination of high rejection, reliability, and durability; suitable for high salinity brackish water and wastewater reuse application.

LG Chem’s NanoH2O™ brackish water RO membranes serve various municipal and industrial applications and major utilities around the world. LG BWRO membranes, all incorporated with innovative Thin Film Nanocomposite (TFN) technology, are offered in industry standard configurations and can easily fit into existing and new RO plants.

LG BW 4040 R Compatibility Information

LG BW 4040 R Membrane Element can be used as a replacement for the below membrane elements in your existing water treatment equipment. Please note that additional hardware or adapters may be required - refer to the pressure vessel and element drawings, or contact us to verify.

  • FilmTec BW30-4040
  • Hydranautics CPA2-4040
  • Hydranautics CPA5-LD-4040
  • Toray TM710

Specifications for LG BW 4040 R

LG Chem Product: LG BW 4040 R
Size (Approximate): 4" Dia. x 40"L
Flow Rate: 2,500 gpd (9.5 m³/d)
Applied Pressure: 225 psig (15.5 bar)
Stabilized Salt Rejection: 99.6%
Minimum Salt Rejection: 99.3%
Active Surface Area: 85 ft2 (7.9 m2)
Single Element Recovery: 15%
End Style: Standard Male PWT
Exterior: Hard Shell Fiberglass
Feed Spacer: 28 mil
Membrane Type: Thin Film Nanocomposite
Can Replace Elements:



 FilmTec BW30-4040
Hydranautics CPA2-4040
Hydranautics CPA5-LD-4040
Toray TM710

Permeate flow and salt rejection based: 2,000 ppm NaCl feed stream, 77°F (25°C), 15% recovery, pH7, and 225 psig (15.5 bar). Permeate flows for individual elements may vary +/- 20%.


Operating Limits for LG BW 4040 R

Maximum Applied Pressure: 600 psig (41 bar)
Maximum Chlorine Concentration: < 0.1 ppm
Maximum Operating Temperature: 113°F (45°C)
pH Range, Continuous (Cleaning): 2-11 (2-12)
Maximum Feedwater Turbidity: 1.0 NTU
Maximum Feedwater SDI (15 min): 5.0
Maximum Feed Flow Rate: 16 gpm (3.6 m³/h)
Maximum Pressure Drop (ΔP)
for Each Element:		 15 psi (1.0 bar)

Benefits & Features of LG Brackish Water Reverse Osmosis Membranes

  • Improved permeate quality without increasing operating pressure
  • Reduced energy cost without sacrificing the permeate quality
  • LG Chem NanoH2O™ RO membranes are Standard 61 certified by NSF international for the production of drinking water.

Markets & Applications for LG Chem Reverse Osmosis Membranes

Power Generation
  • Boiler feed for steam generation
  • Cooling tower makeup water
  • FGD process makeup water
  • Treatment of cooling tower blowdown
  • Condensate polishing
  • NOx cooling water
Petrochemical
  • Desalting water Cooling tower makeup
  • Treatment of cooling tower blowdown
  • Boiler feed for steam generation
  • Condensate polishing
Automotive
  • Paint booths
  • Electrocoat and phosphatizing lines
  • Machining coolant makeup
  • Parts rinsing
Semiconductor
  • Cleaning and etching agents
  • Chip fabrication
  • Rinsing
  • Silicon wafer dicing
  • Cooling
  • Clean room humidification
Desalination
Municipal
Food & Beverage
  • Bottled water
  • Syrup blending
  • Flavor production
  • Boiler feed for steam production
  • Dairy and cheese making
  • Coffee and tea production

Physical Dimensions of LG Chem LG BW 4040 R

INCHES (MM)
A 40 (1016)
B 3.9 (100)
C 0.75 (19)
D 1.1 (29)

LG BW 4040 R fits nominal 4" ID pressure vessels.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 83752407199

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Bozeman, US
★★★★★ 5
I feel fully enveloped in the work
Changed my work at home experience. I feel fully enveloped in the work. I don't use it for gaming so can't comment on that. But for laptop heavy work days, this is a great experience.
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Reviewed in the United States on May 13, 2026
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Eve veyroj
Belleville, US
★★★★★ 5
Perfect for me and my kids
KOORUI 27 Inch Curved Monitor and I am extremely satisfied with its performance. This monitor is perfect for both gaming and desktop use, delivering an immersive and visually stunning experience. First and foremost, the 27-inch curved display is a game-changer. The curved design enhances the viewing experience, making it feel more engaging and immersive. Whether I'm gaming or working on desktop tasks, the curved screen pulls me into the action and provides a wider field of view. The FHD 1080P resolution ensures crisp and clear visuals, allowing me to enjoy games and media with stunning detail. The colors are vibrant and accurate, and the overall picture quality is impressive. I can easily spot even the smallest details in games, giving me a competitive edge. With a 75Hz refresh rate, the monitor delivers smooth and fluid visuals, minimizing motion blur and ensuring an enjoyable gaming experience. Whether I'm playing fast-paced action games or watching videos, the smoothness of the display adds to the overall immersion. The monitor offers multiple connectivity options, including HDMI and VGA, allowing for easy connection to various devices. I appreciate the flexibility this provides, as I can connect my gaming console, PC, or other devices without any hassle. One feature that I particularly value is the tilt adjustability. The ability to tilt the monitor allows me to find the perfect viewing angle for maximum comfort, reducing strain on my neck and eyes during long gaming or work sessions. Another important aspect of this monitor is the eye care technology. The 1800R curvature and eye care features help reduce eye strain and fatigue, even during extended usage. This is a crucial consideration for me, as I spend a significant amount of time in front of the screen. The sleek black design of the monitor adds a touch of elegance to my setup. It blends seamlessly with my gaming or office environment and enhances the overall aesthetics. In terms of value for money, the KOORUI 27 Inch Curved Monitor is an excellent choice. It offers a combination of immersive visuals, smooth performance, and eye care features at an affordable price point. Overall, I highly recommend the KOORUI 27 Inch Curved Monitor for both gaming and desktop use. Its curved display, FHD resolution, smooth refresh rate, and eye care features make it a standout choice. Whether you're a gamer or someone who spends hours working on a desktop, this monitor will undoubtedly enhance your experience."
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Reviewed in the United States on July 18, 2024
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MeekMills
Lake Worth, US
★★★★★ 5
I like
Large, tilt. I like. Just does raise up. Goes good with my stand up desk.
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Reviewed in the United States on April 25, 2026
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Cliente de Kindle
Draper, US
★★★★★ 5
Excent price / quality relation
I had some good expectations about this screen and they were accomplished. The quality is good, it has few modes in its configuration for eye saving or performance.
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Reviewed in the United States on June 3, 2024
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Destini
Whiting, US
★★★★★ 4
It's alright
Performs well on high graphics for gaming. My only complaint is that this has a lot of backlighting. The screen is very bright and not very saturated. I also don't like that you can't adjust the screen height. But other than that, a decent curved monitor.
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Reviewed in the United States on March 30, 2026

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