• Produces 20 percent more water compared to the BW30-400 element, and 10 percent more water compared to the BW30-440i element, at the same operating pressure and with higher rejection, enabling lower capital expense for new systems, or increased water production in an existing system.
• The BW30HR membrane sheet sustains maximum rejection over the useful life of the RO element of critical solutes, including silica, boron, ammonium and nitrate.
• Includes iLEC™ (interlocking endcaps) technology, which reduce system operating costs and the risk of o-ring leaks that can cause decreased permeate water quality.
• Designed using an industry standard 1.125 inch ID permeate tube for interchangeability with other brackish water elements.
  

Operating Limits:

• Membrane Type…………………………………………………… Polyamide Thin-Film Composite
• Maximum Operating Temperaturea ……………………………...113˚F(45˚C)
• 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.)b……………………. 1 - 13
• Maximum Feed Flow……………………………………………… 85 gpm (19 m3/hr)
• Maximum Feed Silt Density Index………………………………..SDI 5
• Free Chlorine Tolerancec………………………………………….<0.1 ppm
  

a Maximum temperature for continuous operation above pH10 is 95˚F (35˚C).

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

cUnder 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