• Effective and efficient cleaning of biofilm, organic compounds and scale, achieved through the widest pH cleaning range (pH 1 – 13), made possible by the most advanced DOW FILMTEC™ RO membrane sheet available today.
• Produces 10 percent more water compared to the BW30-400/34i or BW30-400/34i FR element at the same operating pressure and higher rejection, enabling lower capital expense for new systems, or increased water production in an existing system.
• Enhanced cleaning effectiveness, reducing the impact of fouling and through the use of an optimized 34 mil feed spacer.
• Reliable system integrity, resulting in reduced system operating costs with the iLEC™ technology (interlocking end-caps), minimizing the risk of o-ring leaks that can contribute to poor water quality.

Product Specifications

Operating Limits:

• Membrane Type : Polyamide Thin-Film Composite
• Maximum Operating Temperaturea : 113F (45C)
• Maximum Operating Pressure : 600 psig (41 bar)
• Maximum Pressure Drop : 15 psig (1.0 bar)
• pH Range, Continuous Operationa : 2 - 11
• pH Range, Short-Term Cleaning (30 min.) : 1 - 13
• Maximum Feed Silt Density Index : SDI 5
• Free Chlorine Tolerancec : <0.1 ppm

a ) Maximum temperature for continuous operation above pH 10 is 95F (35C).

b ) Refer to Cleaning Guidelines in specification sheet 609-23010.

c ) Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Since oxidation damage is not covered under warranty, Dow Water & Process Solutions recommends removing residual free chlorine by pretreatment prior to membrane exposure.