Product Features
The BW series membrane module is made of polyamine membrane material with higher desalination performance, which can cope with the desalination and purification of high TDS (>2000mg/L) water source water quality, and can withstand higher operating pressure. Products are widely used in pure water production, brackish water desalination, groundwater desalination, reclaimed water reuse and advanced treatment and other fields.
Product size
Unit: mm (inch)
Membrane element specifications and performance
| Membrane Element Model | Stable Desalination Rate (%) | Minimum Desalination Rate (%) | Average Water Output GPD (m³/d) | Effective Membrane Area ft²(m²) |
| CM-BW-4040 | 99.6 | 99 | 2600(9.8) | 78 (7.2) |
| CM-BW-8040 (400) | 99.6 | 99 | 11000(41.6) | 400 (37.2) |
| CM-BW-8040 (440) | 99.6 | 99 | 12000(45) | 440 (41) |
Test conditions
Test pressure……………………………………………………………………225 psi(1.55 MPa)
Test solution temperature…………………………………………25℃
Test solution concentration (NaCl)…………………………2000 ppm
Test solution pH………………………………………………………………7.5
Recovery rate of single membrane element………15%
Extreme conditions
Maximum operating pressure……………………………………600 psi (4.14 MPa)
Maximum water flow………………………………………………………75 gpm (17 m³/h) (8040) 16 gpm (3.6 m³/h) (4040)
Maximum water temperature……………………………………45°C
Maximum water SDI₁₅……………………………………………………5
Free chlorine concentration in water………………………<0.1 ppm
pH range in water during continuous operation…2-11
pH range in water during chemical cleaning…………1-13
Production workshop
