IWE Reverse Osmosis Membrane

IWE 4040 Brackish Water (BW) Series Membrane – 4″ x 40″

    £165.90 - £199.08 (inc. VAT)


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        ModelActive Membrane Area ft2(m2)Average Permeated Flow GPD (m3/d)Stable Rejection Rate ( %)Minimum Rejection Rate (%)
        IWE-404090(8.4)2400(9.1)99.599.3
        Testing Conditions
        Testing Pressure225psi (1.55Mpa)
        Temperature of Testing Solution25ā„ƒ
        Concentration of Testing Solution (NaCl)2000ppm
        pH Value of Testing Solution7.5
        Recovery Rate of Single Membrane Element15
        Operation Limits and Conditions
        Max. Working Pressure600psiō€’4.14Mpaō€’‚
        Max. Feed water Flow75gpm(17m3/h) (8040), 16gpm(3.6m3/h) (4040,4021)
        Max. Feed water Temperature45ā„ƒ
        Max. Feed water SDI155
        Residual Chlorine Concentration of Feedwaterō€’•0.1ppm
        pH Range of Feedwater during Continuous Operation3ō€“—10
        PH Range of Feedwater during Chemical Cleaning2ō€“—12
        The Max. Pressure Drop of a Single Membrane Element15psi (0.1Mpa)


          Industrial Water Equipments new BW4040 Membranes are specifically designed for the production of pure water for a huge range of industrialĀ applications.

          The main benefits of using Industrial Water Equipments Range of RO membranes are as follows.

          • Best price guarantee
          • Buy from Trusted professional Water Treatment company Industrial Water Equipment ltd whoā€™s tech team will advise you if required.
          • Directly replaces any 4ā€ x 40ā€ RO membranes.
          • Produces less waste water.
          • Always available from UK Stock.
          • Low pressure required.
          • More efficient than other more expensive membranes.
          • Higher flow Capacities.
          • Individually quality tested.
          • Directly replaces Toray, Axaeon, Hydronautics and Dow membranes (plus others).