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DOW FilmTec Membranes
DOW FilmTec ECO elements feature next-generation membrane technology offering the highest quality permeate at 30% lower energy consumption.

By using new membrane chemistry and low dP feed spacers, DOW FILMTEC ECO elements are able to help deliver significantly lower energy costs and reduced chemical consumption in downstream polishing costs. With a new industry-leading performance rejection of 99.7% at 150 psi, DOW FILMTEC ECO elements provide robust performance over a longer element life. At highest quality, the elements deliver 40% lower salt passage at 30% less energy when compared with standard RO elements.

Plants that switch from conventional RO elements to DOW FILMTEC ECO elements enable lower energy usage and reduced regeneration costs.

Benefits of DOW FilmTec ECO Reverse Osmosis Elements

“Plants that switch from conventional reverse osmosis elements to FILMTEC ECO join a unique population of thriving plants that have less impact on the environment and less strain on their bottom line.” ~ Rajat Mehta, global product director for Dow Water & Process Solutions

  • ECO elements reduce operating costs due to lower energy requirements
  • Achieves reduction of the fouling impact by minimized pressure drop
  • Delivers excellent silica, boron, nitrate, TOC and ammonium rejection
  • Provides most effective cleaning performance, robustness and durability due to its widest cleaning pH range (1-13) and chemical tolerance.
  • Elements with iLEC™ interlocking endcaps offer additional benefits:
 DOW FilmTec ECO Elements
    • Reliable and long-term seal integrity – The single, non-sliding seal reduces the number of potential leak sites and is evenly compressed upon installation.
    • Leak-tight performance – The iLEC design eliminates the possibility of o-rings being rolled from their grooves or pinched and damaged during operation.
    • Lubricant-free operation – Omission of o-ring lubricant to preserve permeate quality, such as in ultra-pure water applications, will not compromise sealing performance.
    • Backward compatibility – Compatibility with existing hardware is maintained.  The smooth inner bore located at  each end of the permeate collection tube is unchanged, permitting insertion of sliding couplers and existing vessel adapters.  The net length of the elements, when connected, remains 40 inches.
    • Reduced permeate pressure drop – Internal couplers and vessel adapters account for more than 70 percent  of the permeate-tube pressure drop in some systems. The interlocking endcap design minimizes these restrictions, imposing less permeate backpressure.

DOW FilmTec ECO PRO Reverse Osmosis Elements

DOW FilmTec Model End Cap Style Permeate Flow Rate  Operating Pressure Active Area Feed Spacer  Stabilized Salt Rejection   Minimum Salt Rejection
 ECO PRO-400 Standard   11,500 gpd 43 m3/d     150 psi 400 ft2 (37m2)   34 mil LDP   99.7%   99.4%
ECO PRO-400i  iLEC 
ECO PRO-440  Standard    12,650 gpd  48 m3/d    150 psi  440 ft2 (41m2)   28 mil   99.7%   99.4%
ECO PRO-440i  iLEC 

DOW FilmTec ECO PLATINUM Reverse Osmosis Elements

  • ECO Platinum elements provide improved hydraulic balance, increasing system energy savings.
DOW FilmTec Model End Cap Style Permeate Flow Rate  Operating Pressure Active Area Feed Spacer  Stabilized Salt Rejection   Minimum Salt Rejection
ECO PLATINUM-440  Standard    12,650 gpd 48 m3/d     150 psi 440 ft2 (41m2)   28 mil LDP   99.7%   99.4%
ECO PLATINUM-440i  iLEC 
    • ECO Element Permeate flow and salt (NaCl) rejection based on the following standard test conditions: 2,000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 8, 15% recovery.
    • Flow rates for individual ECO elements may vary but will be no more than +15%.
    • Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending upon feedwater characteristics and operating conditions.
    • Membrane active area guaranteed ± 3%.

DOW FilmTec ECO Reverse Osmosis Element Features

  • FILMTEC ECO’s new advanced thin-film polyamide membrane chemistry provides high salt rejection at lower pressures than previously possible.
  • New LDP (Low Differential Pressure) feed spacer lowers pressure drops for increased productivity and lower fouling impact.
  • High Active Area Reduces Number of Elements Required
  • Durable with Good Cleanability for Long Element Life
  • FilmTec Performance, Support, and Quality
  • All models are offered in both standard end cap configuration and FilmTec's proprietary iLEC interlocking style for direct connection of membranes in multi-element housings.

filmtec_dow_interlocking_membranes

filmtec_dow_ilec_interlocking_membranes

DOW FilmTec ECO Elements are ideal for reverse osmosis plant managers and operators dealing with controlled pre-treatment waters who are looking for a state-of-the-art solution to tackle tough CAPEX and OPEX challenges.

DOW FilmTec ECO Reverse Osmosis Elements Offer New Benefits to Industries and Applications Such As:

  • Improved uptime and reduced chemical use for utility providers
  • Increased rejection at lower feed pressure to accommodate purity needs for electronics manufacturing
  • Savings on energy use and chemical use and increased capacity by improving uptime in the beer and beverage industry
  • Reliable, energy efficient operations with the long-lasting performance required in mobile field location units.
  • Efficient Industrial Water Desalination
  • Water Reuse
 DOW FilmTeC ECO RO Membrane Elements

Related Parts for use with DOW FilmTec ECO RO Elements

DOW FilmTec ECO Elements Technical Data Sheets

Marketing Literature and Publications for DOW FilmTec ECO Elements