LG SW 440 ES

Summary

Product identification

LG Chem’s NanoH2O™ seawater RO membranes, including the LG SW 440 ES, incorporate Thin Film Nanocomposite (TFN) technology. These membranes are designed to reduce the cost of desalination while delivering superior water quality. They offer industry-leading salt rejection and produce 20% more flow compared to membranes manufactured with conventional technologies.

The LG SW ES (Energy Saving) membranes are suitable for low to medium salinity seawater applications, providing significant energy savings while producing good water quality.

Product Specifications

• Active Membrane Area: 440 ft² (41 m²)
• Permeate flow rate: 15,070 GPD (57.0 m³/d)
• Stabilized Salt Rejection: 99.8 %
• Minimum Salt Rejection: 99.6 %
• Boron Rejection: 89 %
• Feed Spacer: 28 mil

Test Conditions: 32,000 ppm NaCl, 5 ppm boron at 25°C (77°F), 800 psi (55 bar), pH 8, Recovery 8%. Permeate flows for individual elements may vary +/-15%.

Operating limits

• Max. Applied pressure: 1,200 psi (82.7 bar)
• Max. Chlorine concentration: < 0.1 ppm
• Max. Operating temperature: 45°C (113°F)
• pH Range, Continuous (Cleaning): 2-11 (2-13)
• Max. Feedwater turbidity: 1.0 NTU
• Max. Feedwater SDI (15 mins): 5.0
• Max. Feed flow: 75 gpm (17 m³/h)
• Min. Ratio of concentrate to permeate flow for any element: 5 : 1
• Max. Pressure drop (ΔP) for each element: 15 psi (1.0 bar)

Mechanical / hydraulic

• A: 1,016 mm (40 in.)
• B: 200 mm (7.9 in.)
• C: 28.6 mm (1.125 in.)
• Weight: 16 kg (35 lbs.)

All dimensional information is indicative and for reference purpose only. Please contact LG Chem for detailed technical specification.

---

Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet