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Brackish Water (BW) Series include 8-inch membrane elements and 4-inch ones. This series of membrane element have larger effective filtration area, and wider inflow path. Not only does it increase the water yield, but diminish the frequency of cleaning, saving energy and cost. BW series obtain the highest quality of water at the lowest cost .
BW Series RO Membrane Elements
Brackish Water (BW) Series include 8-inch membrane elements and 4-inch ones. This series of membrane element have larger effective filtration area, and wider inflow path. Not only does it increase the water yield, but diminish the frequency of cleaning, saving energy and cost. BW series obtain the highest quality of water at the lowest cost .
BW series membrane elements are suitable for desalination of surface water, underground water and low-pollution water source with TDS < 6000ppm and mainly applied in pure water, in food and pharmaceuticals industry, desalted water in power station, boiler feed water , filtering feed water system and purification system of river and under-ground water.
Specification and Main Performance of RO Membrane Elements
Type | Model | Performance | Structure Parameter | ||||
Stable Rejection / % | Average permeate flux /gpd (m3/d) | Effective Membrane Area / ft2 | Flowpath Diameter / mil | Product Pipe Inner Diameter / mm | |||
BW Series | BW-8040 | 99.5 | 10000（37.9） | 380 | 31 | 28.7 | |
BW-8040-400 | 99.5 | 10600（40.1） | 400 | 30 | 28.7 | ||
BW-4040 | 99.5 | 2400（9.1） | 90 | 31 | 19.0 | ||
Testing Conditions: | |||||||
Testing Pressure | 225psi（1.55 MPa） | ||||||
Temperature of Testing Solution | 25 ℃ | ||||||
Testing Concentration（NaCl） | 2000 mg/L | ||||||
pH Value of Testing Solution | 7.5 | ||||||
Recovery of Single Membrane Element | 20% | ||||||
Operation Limits and Conditions: | |||||||
Max. Working Pressure | 600 psi（4.14 MPa） | ||||||
Max. Feedwater Flow | 75 gpm（17 m3/h）（8040） | ||||||
16 gpm（3.6 m3/h）（4040） | |||||||
Max. Inflow Temperature | 45℃ | ||||||
Max. Inflow SDI15 | 5 | ||||||
Residual Chlorine Concentration of Feedwater | ＜0.1 mg/L | ||||||
pH Range of FeedwaterDuring Continuous Operation | 3～10 | ||||||
pH Range of FeedwaterDuring Chemical Cleaning | 2～12 | ||||||
Max Pressure Drop of Single Membrane Element | 15 psi（0.1 MPa） | ||||||
