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  Home > Water Filter Brands > Filmtec Reverse Osmosis Membranes >

  Dow Filmtec XLE-4040 Extra Low Energy Commercial RO Membrane



 
Our Price: $338.67



Product Code: XLE-4040

Description
 
  • Dow Filmtec XLE-4040 Commercial Extra Low Energy Reverse Osmosis Membrane Specs:
  • Dimensions: 3.9" W X 40" L
  • Maximum Operating Temperature: 113°F (45°C)
  • XLE-4040 Permeate Flow Rate gpd (m3/d): 2600 (3.2)
    (Permeate flow rates for individual elements may vary +/-20%.)
  • Maximum Operating Pressure: 600 psi (41 bar)
  • Maximum Feed Flow Rate: 14 gpm (3.2 m3/h)
  • Maximum Stabalized Salt Rejection: 99.0 %
  • Maximum Feed Silt Density Index (SDI): 5
  • Free Chlorine Tolerance: <0.1 ppm
  • pH Range, Continuous Operation: 2-11
    (Maximum temperature for continuous operation above pH 10 is 95°F (35°C))
  • pH Range, Short Term Cleaning: 1-13
  • Dow Filmtec XLE-4040 Reverse Osmosis Membrane Materials of Construction:
  • Membrane Type: Polyamide Thin-Film Composite
Features
    • Dow Filmtec Commercial XLE-4040 Reverse Osmosis Membrane Instructions:


    • After installation of the Filmtec XLE-4040, the first full tank of permeate should be discarded. Do not use this initial permeate.


    • Proper start-up of reverse osmosis water treatment system is essential to prepare the XLE-4040 industrial membrane elements for operating service and to prevent membrane damage due to overfeeding or hydraulic shock.


    • Keep the XLE-4040 RO element moist at all times after initial wetting.


    • During prolonged system shutdowns, it is recommended that the Filmtec Dow XLE-4040 membrane elements be immersed in a preservative solution. This is to prevent biological growth.


    • Avoid any abrupt pressure or cross-flow variations on the spiral elements during shutdown, cleaning or other sequences to prevent possible XLE-4040 Reverse Osmosis 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

    • - Permeate obtained from first hour of operation should be discarded.


    • Maximum pressure drop across an entire pressure vessel (housing) is 30 psi (2.1 bar).

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