LC-HR-4040

Summary

Product identification

FilmTec™ LC 4040 Reverse Osmosis Elements are spiral-wound elements with a polyamide thin-film composite membrane, designed for commercial applications.

Two models are available:

• LC HR-4040: Produces high quality water with state-of-the-art RO membrane.
  • Part Number: 343771 (Dry) / 343770 (Wet)
• LC LE-4040: Delivers high quality water at low pressure under harsh water conditions, using innovative proprietary technology for low energy applications.
  • Part Number: 356603 (Dry) / 356602 (Wet)

Operating limits

• Membrane type: Polyamide Thin-Film Composite
• Maximum operating temperature: 113°F (45°C)
  • Maximum temperature for continuous operation above pH 10 is 95°F (35°C).
• Maximum operating pressure: 600 psig (41 bar)
• Maximum pressure drop: 15 psig (1.0 bar)
• Maximum feed flow rate: 16 gpm (3.6 m³/h)
• pH range:
  • Continuous operation: 2 - 11
  • Short-term cleaning: 1 – 13
• Maximum Feed Silt Density Index: SDI 5
• Free chlorine concentration: < 0.1 ppm
  • DuPont recommends removing residual free chlorine and other oxidants by pretreatment.
• Maximum pressure drop across an entire pressure vessel (housing): 50 psi (3.4 bar)

Product water

Permeate flow and salt rejection based on test conditions: 2000 ppm NaCl, 77°F (25°C), 15% recovery, pH 8.

• Permeate flows for individual elements may vary +/-15%.
• Permeate obtained from the first hour of operation should be discarded.
• The use of this product does not necessarily guarantee the removal of cysts and pathogens. Effective reduction depends on complete system design, operation, and maintenance.

LC HR-4040 Typical Solute Rejection

• NH₄⁺: 98.8%
• NO₃⁻: 98.2%
• SiO₂: 99.8%
• Boron: 80.0%

Mechanical / hydraulic

Element Dimensions (LC HR-4040 and LC LE-4040)

• A: 40.00 inches (1016 mm)

• B: 1.05 inches (26.7 mm)

• C: 0.75 inches (19 mm)

• D: 3.9 inches (99 mm)

• Elements fit nominal 4-inch I.D. pressure vessel.

Operation Guidelines

• Avoid abrupt pressure or cross-flow variations during start-up, shutdown, cleaning, or other sequences.
• During start-up, a gradual change from a standstill to operating state is recommended:
  • Feed pressure should be increased gradually over a 30 – 60 second time frame.
  • Cross-flow velocity at the set operating point should be achieved gradually over 15 – 20 seconds.
• Keep elements moist at all times after initial wetting.
• To prevent biological growth during prolonged system shutdowns, elements should be immersed in a storage solution.
• Avoid static permeate-side backpressure at all times.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions present in the official PDF datasheet. For contractual data and complete information, always refer to the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet