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(028) 6258 5368LG SW 400 ES
The LG SW 400 ES RO membrane is an advanced product from LG Chem, designed for efficient seawater treatment to provide fresh water for domestic and industrial use. Utilizing Thin-Film Nanocomposite (TFN) technology, the membrane ensures up to 99.6% salt rejection, a permeate flow rate of 6,800 GPD (25.7 m3/day), while optimizing energy savings and reducing operating costs.
Product features
- Advanced TFN technology enhances filtration efficiency and energy savings.
- High salt rejection rate of 99.6%, ranking among the top RO membranes available.
- High permeate flow rate of 25.7 m³/day, maximizing system performance.
- 34-mil feed spacer design improves fouling resistance and extends membrane lifespan.
- Certified to NSF/ANSI 61 standards for drinking water system components.
Specification
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Permeate flow rate
6,800 GPD (25.7 m3/day)
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Stabilized salt rejection
99.6%
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Stabilized boron rejection
81%
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Maximum applied pressure
1,200 psi (82.7 bar)
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Active membrane area
400 ft2 (37 m2)
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Feed spacer thickness
34 mil
Selecting the right RO membrane is a crucial factor in seawater treatment. Below are detailed insights into the LG SW 400 ES RO membrane, including technical specifications, operating conditions, key features, advantages, and practical applications.
This information will help customers accurately assess the membrane’s performance and suitability for their seawater treatment systems.
1. Technical specifications of the LG SW 400 ES RO membrane
Understanding technical specifications is crucial for evaluating the membrane’s performance and operational efficiency. Below are the key specifications of LG SW 400 ES:
SPECIFICATION | VALUE |
---|---|
Permeate flow rate | 6,800 GPD (25.7 m3/day) |
Stabilized salt rejection | 99.6% |
Minimum salt rejection | 99.3% |
Maximum applied pressure | 81% |
Active membrane area | 400 ft2 (37 m2) |
Feed spacer thickness | 34 mil |
2. Operating specifications of the LG SW 400 ES RO membrane
To ensure optimal performance and membrane longevity, please adhere to the following operating specifications:
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 | 2 – 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 SW 400 ES RO membrane
The LG SW 400 ES RO membrane is engineered with advanced technology to ensure exceptional filtration performance, high salt rejection, durability, and energy efficiency. The following features make it a top choice for seawater desalination:
- Advanced TFN technology improves filtration efficiency and reduces energy consumption.
- High salt rejection of 99.6% ensures high-quality permeate water output.
- High permeate flow rate enhances system operational efficiency.
- Fouling-resistant design extends membrane lifespan and reduces maintenance costs.
- Optimized operational costs, making it suitable for single or multi-pass RO systems.

4. Advantages of the LG SW 400 ES RO membrane
Compared to other RO membranes on the market, the LG SW 400 ES provides significant benefits to optimize system performance and cost savings. Key advantages include:
- Enhanced water quality without increasing operating pressure.
- Energy efficiency, reducing long-term operational expenses.
- Thin-Film Nanocomposite technology with excellent fouling resistance, lowering maintenance costs.
- Certified to NSF/ANSI 61 standard, ensuring compliance with international drinking water standards.
5. Certifications of the LG SW 400 ES RO membrane
The LG SW 400 ES RO membrane is certified to NSF/ANSI 61, ensuring compliance with international drinking water system safety standards. View certification details.
6. Key applications of the LG SW 400 ES RO Membrane
Thanks to its superior filtration efficiency and optimized design, the LG SW 400 ES seawater RO membrane is widely used across various industrial and municipal applications. Common applications include:
- Seawater desalination plants: Providing fresh water for domestic and industrial use.
- Food & beverage industry: Ensuring high-quality water for production processes.
- Power plants: Supplying ultrapure water for cooling systems.

7. Authorized distributor of the LG SW 400 ES RO Membrane
ATS Water Technology Co., Ltd. is the official distributor of LG Chem’s LG SW 400 ES RO membrane in Vietnam. We commit to delivering genuine products with full certifications, along with expert technical consulting services to help customers select the most suitable membranes for their systems.
By choosing ATS Water Technology, you receive high-quality products, competitive pricing, and dedicated customer support. Contact us today for expert advice and quick assistance!
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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