The Walchin Anti-Pollution Ultra-Low Pressure Series is designed for desalination treatment of municipal tap water and groundwater with salt concentrations up to 2000mg/L. Key features and applications include:
This series is built for low energy consumption, enhanced anti-pollution properties, and high operational efficiency, making it an excellent choice for a wide range of water treatment solutions.
🔹 Customization Available! Tailored solutions are available to meet your specific requirements. Contact us via the Chat icon for more details
Performance parameters
Model |
Membrane Type |
Membrane area/ft² |
Flow GPD(m³/d) |
Stable desalination rate/% |
TW-8040-HF |
Polyamide composite membrane |
400 |
11000(45.7) |
98.0 |
Water production floating range:±15%
Model/Size(mm) |
A |
B |
C |
D |
TW-8040-HF |
40.0(1016) |
1.05(26.7) |
7.9(201) |
1.125(29) |
Test conditions
Test solution concentration(NaCl) |
Water temperature(℃) |
pH |
Operating pressure psi(MPa) |
Recovery rate(%) |
1500ppm |
25 |
7.5-8 |
150(1.03) |
15 |
Operating Limits
Maximum working pressure |
600psi(4.14MPa) |
Maximum water inlet temperature |
45℃ |
Maximum water inlet flow |
75GPM(17m³/h) |
Maximum water inlet SDI15 |
5 |
Maximum residual chlorine concentration(mg/L) |
0.1 |
Inlet water pH range during continuous operation |
2-11 |
pH range of Inlet water during chemical cleaning |
1-13 |
Maximum allowable pressure drop of a single membrane element |
15psi(0.1MPa) |