Lanxess – RO Membrane – Lewabrane RO S400 HR

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The Lewabrane® RO S400 HR elements are spiral wound, composite polyamide membrane elements designed for industrial water treatment applications. The Lewabrane® FR elements are designed to provide more turbulence in the feedwater spacer in combination with the high crosslinked low surface charge Lewabrane membrane. These new RO elements are recommended for brackish and low salinity feedwaters that are expected to have higher biological and organic fouling tendencies.


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Manufacturer Lanxess
Series Lewabrane
Model Number RO S400 HR
Part Number RO S400 HR
Description Feed spacer thickness = 34 mil (0.86 mm)
Membrane area = 400 ft2 (37.2 m2)
Salt rejection, av. = 99.8 %
Salt rejection, min. = 99.5 %
Boron rejection, typical = 93.0 %
Permeate flow rate, av. = 6500 gpd (24.6 m3/d)
Permeate flow rate, min.= 5200 gpd (19.7 m3/d)
Key Features Operating pressure, max. = 1200 psi (83 bar)
Operating temperature, max. = 113 °F (45 °C)
Feed water SDI, max. = 5
pH range during operating = 2-11
pH range during cleaning = 1-12
Pressure drop per element, max. = 15 psi (1.0 bar)
Pressure drop per vessel, max. = 50 psi (3.5 bar)
Chlorine concentration, max. = 0.1 ppm
Overall Length 40" (1016mm)

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