Home / Products / Reverse Osmosis Membrane Elements / Brackish Water (BW) / BWRO Membrane Fouling Resistance & Low Energy Series BW-8040-400FRLE
BW RO membrane elements are mainly used for brackish water desalination. They provide excellent, stable and consistent membrane performance for industrial water treatment systems.
UltraClean FRLE series reverse osmosis membrane elements have extremely strong anti-fouling performance and low energy consumption performance. The membrane elements are developed for the treatment of low-quality feed water with a high tendency for biological or organic pollution. Its operating pressure is 30% lower than that of ordinary brackish water reverse osmosis membrane elements, the energy consumption is reduced by about 1/3, and the stable desalination rate can reach 99.3%. The anti-pollution low-energy series is available in 8-inch and 4-inch sizes.
About this item
HIGH QUALITY MEMBRANE：Features highest flow rates available to meet the water demands of both land and sea based desalinates, offering a high efficiency while providing a superior quality of water for your household or business to consume and enjoy.
FRESH TASTING WATER：The Reverse Osmosis Replacement Membrane cleans your water by removing heavy metals, inorganics and volatile organics and other harmful chemicals that produce distasteful and smelly odors.
Membrane Performance Specification
|Active Area ft²（m²）||400（37）|
|Permeate Flow Rate GPD（m³/d）||11500（44）|
Test conditions: inlet pressure 1.03 MPa (150 psi); inlet temperature 25°C (77°F); inlet water quality 2000ppm NaCl; inlet pH 8; recovery 15%.
It is recommended that systems using these elements rinse the elements for 24 hours, prior to first use, to meet NSF/ANSI 58 Standard.
The first full tank of permeate must be discarded. Do not use this initial permeate for drinking water or food preparation.
Keep elements moist at all times after initial wetting.
To prevent biological growth during prolonged system shutdowns, it is recommended that membrane elements be immersed in a preservative solution. Rinse out the preservative before use.
The membrane shows some resistance to short-term attack by chlorine (hypochlorite). Continuous exposure, however, may damage the membrane and should be avoided.
Operating and Cleaning Limits
|Maximum Operating Pressure||41 bar (600 psi)|
|Maximum Operating Temperature||45°C (113°F )|
|Maximum Element Pressure Drop||1.0 bar (15psi)|
|pH Range Continuous Operation||2-11|
|pH Range Short-Term Cleaning||1-13|
|Maximum Feed SDI(SDI15)||5.0|
|Free Chlorine Tolerance||< 0.1 ppm|
Permeate flow for individual elements may vary ±15 percent from the value specifed.
Active membrane area guaranteed ±4%.
Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending upon feedwater characteristics and operating conditions.