Introduction
XINXIANG LIFEIERTE FILTER CORP., LTD, a global leader in advanced water treatment solutions, proudly introduces the SW30-4040 Reverse Osmosis (RO) Membrane, engineered to deliver exceptional performance in seawater desalination and high-salinity water purification. Designed for durability and efficiency, the SW30-4040 model is part of the renowned SW series, tailored to address the growing demand for reliable, energy-efficient desalination in industries such as textiles, power generation, and offshore oil production.
With its robust polyamide composite structure and high-pressure tolerance, the SW30-4040 membrane ensures superior removal of dissolved salts, organic contaminants, and microorganisms. Whether for coastal industrial facilities or remote offshore platforms, this membrane stands as a cornerstone of sustainable water treatment technology.
Product Structure
The SW30-4040 RO membrane features a precision-engineered spiral-wound design, optimized for high-pressure operation and long-term stability:
Membrane Layers:
Polyamide Thin-Film Composite (TFC): The active layer selectively rejects ions and contaminants.
Polysulfone Support Layer: Provides mechanical strength and chemical resistance.
Permeate Spacer: Facilitates pure water collection.
Feed Spacer: Ensures uniform flow distribution across the membrane surface.
Pressure Vessel Compatibility:
Designed for 4-inch diameter, 40-inch length (4040) pressure vessels.
Constructed with corrosion-resistant materials for seawater applications.
End Caps and Interconnectors:
Technical Parameters
The SW30-4040 excels in high-salinity environments, with specifications tailored for seawater desalination:
| Model | SW30-4040 |
Membrane Type | Polyamide TFC |
Diameter | 4 inches (101.6 mm) |
Length | 40 inches (1,016 mm) |
Effective Area | 400 ft² (37.2 m²) |
Max Pressure | 1,200 psi (8,274 kPa) |
Salt Rejection | ≥99.8% (NaCl) |
Flow Rate | 7,000–9,000 GPD (26.5–34 m³/day) |
pH Range | 4–11 (Operating), 2–12 (Cleaning) |
Temperature | 4°C–45°C (Continuous) |
Testing Conditions: 32,000 ppm NaCl solution, 800 psi (5,516 kPa), 25°C, pH 8.0, 10% recovery rate.
Key Features
High Salt Rejection: Removes ≥99.8% of dissolved salts, ideal for seawater and brackish water.
High-Pressure Tolerance: Stable performance under pressures up to 1,200 psi.
Anti-Fouling Design: Optimized feed spacers minimize particulate fouling.
Long Lifespan: Proper maintenance ensures 3–5 years of service life.
Low Energy Consumption: High permeability reduces operational costs.
Applications in the Textile Industry
In textile manufacturing, water quality directly impacts dyeing precision, fabric quality, and wastewater management. The SW30-4040 addresses critical challenges:
Dyeing & Finishing: Removes dissolved solids and impurities, ensuring consistent color fastness.
Boiler Feedwater: Prevents scale formation in steam generation systems.
Wastewater Recycling: Treats dye-contaminated water for reuse, reducing freshwater intake.
By delivering ultrapure water, the SW30-4040 enhances production efficiency while complying with environmental regulations.
Other Industrial Applications
Seawater Desalination: Produces potable water for coastal industries and communities.
Power Plants: Supplies demineralized water for cooling towers and turbines.
Oil & Gas: Treats produced water for reuse in offshore platforms.
Food & Beverage: Ensures high-purity water for ingredient processing.
Working Principle
The SW30-4040 utilizes reverse osmosis to separate pure water from saline solutions:
High-Pressure Feed: Seawater is pressurized and forced through the membrane.
Selective Filtration: The polyamide layer rejects ions, organics, and bacteria.
Concentrate Discharge: Brine with concentrated impurities is flushed out.
Pure Water Collection: Permeate is collected for industrial or potable use.
The membrane’s 0.0001-micron pores ensure near-complete removal of contaminants.
Advantages Over Conventional Systems
Higher Efficiency: Outperforms traditional thermal desalination in energy savings.
Compact Design: Modular installation saves space and reduces footprint.
Scalability: Easily integrated into multi-stage systems for higher recovery rates.
Environmental Compliance: Reduces brine discharge volume through optimized recovery.
Conclusion
The SW30-4040 Reverse Osmosis Membrane by XINXIANG LIFEIERTE FILTER CORP., LTD redefines industrial water treatment with its unmatched durability and efficiency. From seawater desalination to textile dyeing, this membrane delivers consistent performance under the most demanding conditions. Backed by rigorous quality control and global technical support, the SW30-4040 is the ideal choice for industries seeking sustainable, high-quality water solutions.
Common Part Numbers
Dow | Hydranautics | Toray | CSM | GE | VONTRON |
BW30XFR-400/34 | ESPA1-4040 | TMH20A-400C | RE4040-BLR | AG8040F-400FR,34 | SW4040HR |
BW30FR-400/34 | CPA2-4040 | TMH20A-440C | RE8040-BE | AG8040F-400 | ULP21-8040 |
BW30-400/34 | C PA3-LD | TMG20-370C | RE8040-BLN | AG8040F-400LF | ULP2012 |
BW30-400/34i | SWC5-LD | TMG20-400C | RE8040-BLR | AG4040FM | ULP1812 |
BW30-400 | ESPA2-4040 | TMG20-440C | RE4040-BLN | AG8040F-365 | ULP32-8040 |
BW30-400IG | YQS-4040 | TMG20D-400 | RE4040-BE | AG8040N-400 | ULP31-4040 |
BW30-365 | ESPA2-7 | TMG20D-440 | L-RO-4040 | AK4040FM | ULP22-8040 |
BW30XFR-400/34i | CPA6-LD | TM720-370 | RE1812-HR50 | AG4040F | ULP21-4040 |
BW30FR-400/34i | ESPA2 MAX | TM720-400 | RE1812-HR75 | ETC. | ETC. |
BW30HRLE-440 | LFC3-LD | TM720-440 | RE1812-HR100 |
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BW30HRLE-440i | ESPA2 | TM720C-440 | RE4021-TE |
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XFRLE-400/34i | PR0C10 | TM720D-370 | RE2521-TE |
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SW30HRLE-400 | PR0C20 | TM720D-400 | RE2540-TE |
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BW30FR-400/34i | ESPA2-4040 | TM720D-440 | RE4040-TE |
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BW30XFRLE-400/34i | ESPA4-4040 | TML20N-400 | RE4040-TL |
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BW30LCHR-4040 | CPA3-LD-8040 | TML 20D-370 | ETC. |
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BW30-4040 | SWC5-8040 | TML20DA400 |
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LCLE-4040 | YQS-8040 | TML20D-400 |
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BW30HRLE-4040 | ESPA2-8040 | TMH10A |
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SW30-4040 | ESNA1-LF-LD | TMG10D |
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BW30HR-380 | ESNA1-K1 | TM710D |
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SFP-2880 | CPA3-LD | TML10D |
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