Our membrane is designed for small water supply system such as house pure water machines and small pure water systems of hospitals and laboratories.
FES-R series of membrane is suitable for source waters with salinity below 2000 ppm, the membranes can be used for salt rejection treatment of all kinds of below the surface water, groundwater, tap water and municipal water. FES membarnes are mainly used in pure water, boiler feed water, food processing, pharmaceutical manufacturing industries and many other kinds of fields.
2、Specifications & Performance
|Performance||Stable salt rejection%||97||97||97||97|
|Minimum salt rejection
|Average permeate flow GPD(m³/d)||58（204）||75（281）||100（380）||125（478）|
|Effective area of membrane ft2(m2)||4（0.4）||4.2（0.42）||5.0（0.5）||5.3（0.53）|
|Tseting condition||Testing pressure||65pai(0.45Mpa)|
|Concentration of testing solution (NaCl)||500ppm|
|PH value of testing solution||6.5-7.5|
|Recovery rate of single membrane element||15|
|Maximum operating condition||Max operating pressure||300psi（2.0Mpa）|
|Max feedwater temperature||45℃|
|Max SDI of feedwater||5|
|Max concentration of free chlorine||＜0.1mg/l|
|PH value range of continual feedwater||3～10|
|PH value range of income water when chemical cleaning||2～11|
|The maximum pressure drop of single membrane||10psi（0.07Mpa）|
3, Related Information
① The produced water amount listed in the table is an average value, compare with the standard value, the difference of the minimum amount of water produced by a single membrane does not exceed ± 15%.
② All wet membrane undergo rigorous factory inspection, and use specific protective solution and vacuum-packed, then stored in strong cartons. In order to prevent growth of microorganisms during short-term storage, transport and the system standby, we recommend preparation protective solution by RO membrane produced water, then immerse membrane.
③ When new membranes run, the produced water of at least the first hour has to be discharged out.