IWE 4021 Brackish Water (BW) Series Membrane – 4″ x 21″

    £199.08 - £165.90 (exc. VAT)


    To request a call back regarding this product please complete the form below.





        ModelActive Membrane Area ft2(m2)Average Permeated Flow GPD (m3/d)Stable Rejection Rate ( %)Minimum Rejection Rate (%)
        IWE-402138(3.5)1000(3.78)99.098.0
        Testing Conditions
        Testing Pressure150psi (1.03Mpa)
        Temperature of Testing Solution25℃
        Concentration of Testing Solution (NaCl)1500ppm
        pH Value of Testing Solution7.5
        Recovery Rate of Single Membrane Element15%
        Operation Limits and Conditions
        Max. Working Pressure600psi􀒁4.14Mpa􀒂
        Max. Feed water Flow75gpm(17m3/h) (8040), 16gpm(3.6m3/h) (4040,4021)
        Max. Feed water Temperature45℃
        Max. Feed water SDI155
        Residual Chlorine Concentration of Feedwater􀒕0.1ppm
        pH Range of Feedwater during Continuous Operation3 􀓗10
        PH Range of Feedwater during Chemical Cleaning2 􀓗12
        The Max. Pressure Drop of a Single Membrane Element15psi (0.1Mpa)