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XLE - 4040, Reverse osmosis membrane (membrane element) Dow Filmtec Dupont
A complete range of FILMTECTM 4040-size elements is available to meet a wide variety of customer needs for commercial applications, from the highest purity water to the lowest total system costs.
• FILMTEC XLE-4040 is the most productive, lowest pressure RO membrane available, delivering the lowest total system cost.
• FILMTEC LP-4040 delivers high quality water at low pressure operation. LP-4040 replaces many “first generation” low pressure membrane elements and will purify more water in many older systems, especially on cold water feeds.
• FILMTEC TW30-4040 is the industry standard for reliable operation and production of the highest quality water.
Tape-wrapped elements are built with the same high quality membranes and materials of construction as industrial elements, except for the hard outershell, and are more economical for commercial systems with one or two elements per housing.
Description ...
• FILMTEC XLE-4040 is the most productive, lowest pressure RO membrane available, delivering the lowest total system cost.
• FILMTEC LP-4040 delivers high quality water at low pressure operation. LP-4040 replaces many “first generation” low pressure membrane elements and will purify more water in many older systems, especially on cold water feeds.
• FILMTEC TW30-4040 is the industry standard for reliable operation and production of the highest quality water.
Tape-wrapped elements are built with the same high quality membranes and materials of construction as industrial elements, except for the hard outershell, and are more economical for commercial systems with one or two elements per housing.
Description ...
435.00 €
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Product characteristics
Part number: 154546
Active area sq ft (m2): 87 (8.1)
Feed Pad Thickness (mil): 28
Permeate consumption, gallons per day (m3 / day): 2600 (9.8)
Stabilized Salt Deviation (%): 99.0
1. Permeate flow and salt rejection based on the following test conditions: 77°F (25°C), 15% recovery and applied pressure: 100 psig (6.9 bar) for XLE-4040, 145 psig (10 bar) for LP-4040 and 225 psig (15.5 bar) for TW30-4040. FILMTEC TW30-4040 specifications are based on a 2,000 ppm NaCl feed stream. FILMTEC LP-4040 and FILMTEC XLE-4040 specifications are based on a 500 ppm NaCl feed stream.
2. Permeate flows for individual elements may vary +/-20%.
3. For the purpose of improvement, specifications may be updated periodically.
Operating Limits
Membrane Type: Polyamide Thin-Film Composite
• Maximum Operating Temperature: 113°F (45°C)
• Maximum Operating Pressure: 600 psig (41 bar)
• Maximum Feed Flow Rate: 14 gpm (3.2 m3/hr)
• Maximum Pressure Drop: 13 psig (0.9 bar)
• pH Range, Continuous Operationa: 2 - 11
• pH Range, Short-Term Cleaning (30 min.)b: 1 - 13
• Maximum Feed Silt Density Index (SDI): SDI 5
• Free Chlorine Tolerancec: <0.1 ppm
Important Information
Proper start-up of reverse osmosis water treatment systems is essential to prepare the membranes for operating service and to prevent membrane damage due to overfeeding or hydraulic shock. Following the proper start-up sequence also helps ensure that system operating parameters conform to design specifications so that system water quality and productivity goals can be achieved.
Before initiating system start-up procedures, membrane pretreatment, loading of the membrane elements, instrument calibration and other system checks should be completed.
Please refer to the application information literature entitled “Start-Up Sequence” (Form No. 609- 02077) for more information.
Operation Guidelines
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 as follows:
• Feedpressureshouldbeincreasedgraduallyovera30-60secondtimeframe.
• Cross-flowvelocityatsetoperatingpointshouldbeachievedgraduallyover15-20seconds.
• Permeateobtainedfromfirsthourofoperationshouldbediscarded.
Regulatory Note
These membranes may be subject to drinking water application restrictions in some countries: please check the application status before use and sale.
Diameter, inch: 4 "
Pressure, atm .: 7
Selectivity,: 99.7
Productivity, m3 / day: 11
Filtering surface area, m2: 8.1
Filmtec XLE-4040 reverse osmosis membranes manufactured by Dow Chemical (USA) provide effective water purification from a wide range of dissolved substances of both organic and inorganic origin (up to 99, 8).
They are characterized by high resistance to chemical compounds, stable structure, low energy consumption and provide higher performance compared to analogues.
