Featuring breakthrough membrane chemistry, the DOW™ FILMTEC™ HRLE-440i element delivers the same 99.5% nominal NaCl rejection as traditional brackish water elements but at 33% lower pressures.
 

• Lower energy requirements allow new reverse osmosis systems to be designed to use one third less energy and still deliver the same permeate quality compared with other BW elements
• Existing low energy systems can be retrofitted to achieve lower permeate TDS than possible with previous low energy elements
• The combination of low energy and high rejection is ideally suited for use in the second pass of seawater and high-purity applications
• Excellent rejection of silica, boron, nitrate and ammonium; supported by Dow’s modeling software
• Increased IPA rejection (IPA rejection is a common surrogate for TOC removal)
• Available dry for longer storage life and easier handling
  

Product Specifications

• Permeate flow and salt (NaCl) rejection based on the following standard conditions: 2,000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 8 and 15% recovery.
• Flow rates for individual elements may vary but will be no more than 15% below the value shown.
• Sales specifications may vary as design revisions take place.
• Active area guaranteed +/-3%. Active area as stated by Dow Water & Process Solutions is not comparable to nominal membrane area often stated by some manufacturers. Measurement method described in Form No. 609-00434.
• Specific solute stabilized rejections based on the following standard test conditions: 2,000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 7 and 15% recovery, 50 ppm SiO2, 5 ppm B, 100 ppm NO3-, 100 ppm NH4+, or 100 ppm IPA.