LG CW 4040 SF

Summary

Product identification

LG CW 4040 SF reverse osmosis (RO) membranes are designed for the car wash industry and other various commercial applications. These membranes incorporate Thin Film Nanocomposite (TFN) technology, offering high productivity at ultra-low feed pressure and good salt rejection. They are available in an industry-standard 4"x40" configuration.

Product Specifications

• Active Membrane Area: 85 ft² (7.9 m²)
• Permeate flow rate: 2,900 GPD (11.0 m³/d)
• Stabilized Salt Rejection: 99.0%
• Minimum Salt Rejection: 98.0%
• Feed Spacer: 28 mil

Test Conditions: 500 ppm NaCl at 25°C (77°F), 100 psi (6.9 bar), pH 7, Recovery 15%. Permeate flows for individual elements will vary with no less than 85% of the specified datasheet flow.

• Dimensions:
  • A: 1,016 mm (40 in.)
  • B: 100 mm (3.9 in.)
  • C: 19 mm (0.75 in.)
  • D: 29 mm (1.1 in.)
• Weight: 4.0 kg (8.8 lbs.)

Operating limits

• Max. Applied pressure: 600 psi (41 bar)
• Max. Chlorine concentration: < 0.1 ppm
• Max. Operating temperature: 45°C (113°F)
• pH Range, Continuous (Cleaning): 2-11 (2-12)
• Max. Feedwater turbidity: 1.0 NTU
• Max. Feedwater SDI (15 mins): 5.0
• Max. Feed flow: 16 gpm (3.6 m³/h)
• Max. Pressure drop (ΔP) for each element: 15 psi (1.0 bar)

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Disclaimer: This summary is based on the provided text extract. The original OEM PDF may contain additional figures, footnotes, or more recent revisions. Contractual data should always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet