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:
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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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4.6 ★★★★★
Based on 21 reviews
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Verified Purchase
Cristie LG
Port Orchard, US
★★★★★ 5
This is an awesome toy for dogs and cats!
Color: red
This is such a cool toy for a dog or a cat. I bought it for my 28 pound Aussie doodle. She’s slightly laid up after an injury recently so I’m trying to come up with things she can play with in the house without excessive running. This totally keeps her engaged and she loves it. But I have to watch her because every once in a while she’ll just catch it and try and chew on the ball! But I’ve been sharing it with my neighbor who has a cat. She’s borrowing it today and her cat loves it too! It seems pretty durable overall but it certainly doesn’t want my dogs’s jaws trying to crack it into. You do hear a humming noise while it’s running but I think that’s to be expected. Mostly I just love how much it entertains both dogs and cats!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
S
Verified Purchase
Stephanie Brasher
Waukegan, US
★★★★★ 5
So cute and entertaining to watch!
Color: pink
Bought for my miniature schnauzer. She didn’t know what to think at first but loves it now. It’s so much fun watching her play and keeps her busy! My dog isn’t much of a chewer and loves the movement/chase of this toy. Wouldn’t recommend for big dogs or chewers as there’s a plastic piece that can come off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
M
Verified Purchase
M. M.
West Palm Beach, US
★★★★★ 1
I stops working & doesn't recharge
Color: blue
I just recieved this yesterday 5-23-2026. My new puppy loves it. But after it stopped working and I went to recharge it. it just will not recharge. I currently have it still trying to recharge. so I am not sure what to do other than trying to charge it. I may need to look for something else.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
K
Verified Purchase
KAMI
Lake Worth, US
★★★★★ 5
Let's play
Color: red&green
My dog loves this toy and he will play it until it dies the noise is fine the material is great the pets love it easy to recharge and keep your pet busy for a long time so good I had to buy a second set
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2026
T
Verified Purchase
Triton Owner
Birmingham, US
★★★★★ 3
Nice Idea But Won't Last With A Frenchie
Color: orange & blue, Color: orange & blue
My dogs loved the balls, however, withing 30 minutes, they were in pieces. Be careful because these parts can become choking hazards. Maybe they should try to make them a bit more sturdy, then I would buy again. Wish I could give them more stars because I liked them and the dogs did too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026

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