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| rejection /% | permeate flux /gpd(m3/d) | Effective membrane area /ft2 | Flowpath Dia /mil | Inner pipe Dia /mm | ||
| Model | BW-8040-365 | 99.5 | 10000 | 380 | 31 | 28.7 | 
| BW-8040-400 | 99.5 | 10600 | 400 | 30 | 28.7 | |
| BW-8040-400/34 | 99.5 | 10600 | 400 | 34 | 28.7 | |
| BW-8040-440 | 99.5 | 12000 | 440 | 34 | 28.7 | |
| BW-4040 | 99.5 | 2400 | 90 | 31 | 19.0 | |
| BW-4021 | 99.5 | 900 | 38 | 31 | 19.0 | |
| Testing conditions | Testing Pressure | 225psi(1.55 MPa) | ||||
| Temperature of testing | 25 ℃ | |||||
| Testing Concentration(NaCl) | 2000 mg/L | |||||
| pH Value of testing | 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 flow SDI15 | 5 | |||||
| Residual Chlorine Concentration of feed water | <0.1 mg/L | |||||
| pH range of Feed water durng Continuous Operation | 3~10 | |||||
| pH range of feed water during chemical cleaning | 2~12 | |||||
| Max, Pressure Drop of Single membrane element | 15 psi(0.1 MPa) | |||||