LC LE PRO-4040

Summary

Product identification

• Product Name: FilmTec™ LC LE PRO-4040 Reverse Osmosis Elements
• Part Number: 12081512
• Key Features:
  • Delivers high quality water at low pressure at harsh water conditions, using DuPont’s innovative, proprietary technology for low energy applications.
  • Industry leading active area (94 sqft) which provides less fouling due to lower operating flux while still achieving higher flow.
  • Offers high salt rejection at low pressure in harsh water conditions.
  • Provides most effective cleaning performance, robustness and durability due to its widest cleaning pH range (1 – 13) and chemical tolerance.
• Key Applications:
  • Light industrial applications requiring good permeate quality.
  • Harsh feed water condition.
  • Drinking water – Refilling stations, Bottling plants, Hotels, Schools, Institutions etc.

Operating limits

• Membrane type: Polyamide Thin-Film Composite
• Maximum operating temperature: 113°F (45°C)
• Maximum operating pressure: 600 psig (41 bar)
• Maximum pressure drop (per element): 15 psig (1.0 bar)
• Maximum feed flow rate: 16 gpm (3.6 m³/h)
• pH range:
  • Continuous operation: 2 - 11 (Maximum temperature for continuous operation above pH 10 is 95°F (35°C))
  • Short-term cleaning: 1 – 13
• Maximum Feed Silt Density Index (SDI): SDI 5
• Free chlorine concentration: < 0.1 ppm (Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure.)

Product water

• Permeate Flow Rate: 2600 gpd (9.8 m³/d)
• Minimum Salt Rejection: 99.0%
• Stabilized Salt Rejection: 99.5%

(Note: Permeate flow and salt rejection are based on test conditions: 2000 ppm NaCl, 77°F (25°C), 15% recovery, pH 8, and applied pressure 150 psig. Permeate flows for individual elements may vary +/-20%.)

Mechanical / hydraulic

• Active Area: 94 sqft
• Element Fit: Nominal 4-inch I.D. pressure vessel.
• Element Dimensions (inches (mm)):
  • A: 40.00 (1016)
  • B: 1.05 (26.7)
  • C: 0.75 (19)
  • D: 3.9 (99)
• Maximum pressure drop across an entire pressure vessel (housing): 50 psi (3.4 bar)

General Information

• Keep elements moist at all times after initial wetting.
• To prevent biological growth during prolonged system shutdowns, it is recommended that membrane elements be immersed in a preservative solution.
• The customer is fully responsible for the effects of incompatible chemicals and lubricants on elements.
• Avoid static permeate-side backpressure at all times.
• Permeate obtained from the first hour of operation should be discarded.
• Avoid any abrupt pressure or cross-flow variations on the spiral elements during start-up, shutdown, cleaning or other sequences to prevent possible membrane damage.
• 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 set operating point should be achieved gradually over 15-20 seconds.
• The use of this product in and of itself does not necessarily guarantee the removal of cysts and pathogens from water. Effective cyst and pathogen reduction is dependent on the complete system design and on the operation and maintenance of the system.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the OEM PDF. For contractual data and complete specifications, the official OEM PDF revision used on the project must be consulted.

Official datasheet (PDF)

PDF datasheet