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(028) 6258 5368
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Technology 
Application 
LG BW 400 R G2
The LG BW 400 R G2 RO membrane is the second-generation brackish water membrane from LG Chem, an upgraded version of the LG BW 400 R. Utilizing Thin-Film Nanocomposite (TFN) technology, it enhances salt rejection up to 99.8% and delivers a permeate flow rate of 11,500 GPD (43.5 m³/day). With a 34-mil feed spacer (Low dP) design, this membrane reduces pressure drop, minimizes fouling, and extends operational longevity.
Product Features
- Thin-Film Nanocomposite (TFN) technology enhances water treatment efficiency and energy savings.
- High salt rejection of up to 99.8%, ensuring premium permeate water quality.
- High permeate flow rate of 43.5 m³/day, optimizing system performance.
- 34-mil feed spacer (Low dP) reduces pressure drop, improves fouling resistance, prevents clogging, and extends membrane lifespan.
- Reduced cleaning frequency and maintenance, optimizing operational costs.
- Superior durability, ensuring stable long-term operation.
- Certified to NSF/ANSI 61 standards for drinking water system components.
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Technical specifications
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Permeate flow rate
11,500 GPD (43.5 m3/d)
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Stabilized salt rejection
99.8%
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Minimum salt rejection
99.65%
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Maximum applied pressure
600 psi (41.3 bar)
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Active membrane area
400 ft2 (37 m2)
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Feed spacer thickness
34 mil (low dP)
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The LG BW 400 R G2 RO membrane is the optimal choice for brackish water treatment systems, thanks to its advanced Thin-Film Nanocomposite (TFN) technology and improved 34-mil feed spacer (Low dP) design. With up to 99.8% salt rejection, high permeate flow, and excellent pressure drop reduction, this membrane enhances operational efficiency, reduces energy consumption, and extends system lifespan.
Below are the detailed specifications of the LG BW 400 R G2 membrane. Customers can refer to this information to accurately assess its performance and compatibility with their water treatment systems.
1. Technical specifications of the LG BW 400 R G2 RO membrane
Understanding the technical specifications of the RO membrane is crucial for evaluating its performance and compatibility with water treatment systems. The LG BW 400 R G2 is designed to provide high permeate flow while maintaining superior water quality, with minimal pressure loss during operation.
| SPECIFICATION | VALUE |
|---|---|
| Permeate flow rate | 11,500 GPD (43.5m3/day) |
| Stabilized salt rejection | 99.8% |
| Minimum salt rejection | 99.65% |
| Active membrane area | 400 ft2 (37 m2) |
| Feed spacer thickness | 34 mil (low dP) |
2. Operating specifications of the LG BW 400 R G2 membrane
To ensure optimal performance and extended membrane lifespan, follow the recommended operating specifications. The LG BW 400 R G2 is engineered for stable operation across various conditions, minimizing risks while maximizing water treatment efficiency.
| SPECIFICATION | VALUE |
|---|---|
| Maximum applied pressure | 600 psi (41.3 bar) |
| Maximum chlorine concentration | < 0.1 ppm |
| Maximum operating temperature | 45°C (113°F) |
| pH range, continuous operation | 2 – 11 |
| pH range, cleaning | 1 – 13 |
| Maximum feed water SDI15 | 5.0 |
| Maximum feed water turbidity | 1.0 NTU |
| Maximum feed flow | 75 gpm (17 m3/h) |
| Maximum pressure drop (ΔP) for each element | 15 psi (1.0 bar) |
3. Key features of the LG BW 400 R G2 RO membrane
The LG BW 400 R G2 is designed not only for high filtration efficiency but also for improved system durability, cost-effective maintenance, and reduced clogging risks. Below are its standout features:
- Superior salt rejection of 99.8%, ensuring high-quality permeate water.
- Optimized TFN technology enhances flow dynamics, improves filtration efficiency, and maintains stable water output.
- 34-mil feed spacer (Low dP) reduces pressure drop and improves operational efficiency.
- High fouling resistance, minimizing clogging and prolonging membrane life.
- Exceptional durability, ensuring stable long-term performance.
4. Advantages of the LG BW 400 R G2 RO membrane
Beyond its superior salt rejection capabilities, the LG BW 400 R G2 is engineered to optimize operational and maintenance costs. Below are its key advantages:
- Consistently high permeate water quality due to outstanding salt rejection and stable flow rate.
- Reduced cleaning frequency, lowering chemical costs and extending membrane replacement cycles.
- Excellent recovery performance after cleaning, ensuring long-term system reliability.
- Energy-efficient design, minimizing operational costs and total system ownership expenses.
- Certified to NSF/ANSI 61 standards, meeting international safety requirements for drinking water treatment systems.
5. Certifications of the LG BW 400 R G2 RO membrane
The LG BW 400 R G2 is certified to NSF/ANSI 61, guaranteeing compliance with international safety standards for drinking water system components. View certification details.
6. Applications of the LG BW 400 R G2 RO membrane
With its high water treatment efficiency and optimized design, the LG BW 400 R G2 is suitable for a wide range of industrial and municipal water treatment systems. This membrane enhances energy efficiency and optimizes operational performance for key applications such as:
- Industrial water treatment: Supplying clean water for manufacturing processes.
- Municipal water supply systems: Delivering high-quality drinking water.
- Wastewater reuse: Helping conserve water resources and protect the environment.
7. ATS Water Technology – Authorized distributor of LG BW 400 R G2 membranes
Selecting a trusted supplier is essential for ensuring stable, high-performance water treatment systems. ATS Water Technology Co., Ltd. is the official distributor of LG BW 400 R G2 RO membranes from LG Chem, providing genuine products with full international certifications.
Beyond supplying membranes, we deliver comprehensive water treatment solutions, helping customers choose the most suitable membranes for their specific needs. With a team of experienced engineers, ATS Water Technology offers professional support to ensure efficient operation and cost savings. Contact us today for expert consultation and the best solutions for your water treatment system!
ATS WATER TECHNOLOGY CO., LTD
- Headquarter: 54/18 Bui Quang La, Ward 12, Go Vap District, HCMC
- Branch office: 77 DHT10B, Dong Hung Thuan Ward, District 12, HCMC
- Consultation and support: (028) 6258 5368 – (028) 6291 9568
- Email: info@atswatertechnology.com
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