The Walchin Domestic Reverse Osmosis (RO) Membrane Series is designed using the world’s most advanced polyamide composite RO technology. Manufactured in our factory using precise membrane element rolling techniques, these membranes are ideal for home water filtration systems. They effectively remove a wide range of harmful substances from water, including:
✅ Organic matter, microorganisms & viruses
✅ Radioactive ions & carcinogenic factors
✅ Heavy metals, scale & other contaminants
Perfect for municipal tap water treatment, our membranes provide clean, safe, and high-quality drinking water for households.
Custom Orders Available: The membrane elements can be tailored to meet your specific needs. Contact us via the Chat icon for customized solutions or bulk orders.
Performance parameters
Model |
Membrane Type |
Membrane area/ft² |
Flow GPD(m³/d) |
Stable desalination rate/% |
TW-2012-200 |
Polyamide composite membrane |
8.0 |
200(31.54) |
96 |
Water production floating range:±20%
Model/Size(mm) |
A |
B |
C |
D |
E |
TW-2012-200 |
298 |
22.2 |
17 |
49 |
239 |
Test conditions
Test solution concentration(NaCl) |
Water temperature(℃) |
pH |
Operating pressure psi(MPa) |
Recovery rate(%) |
500ppm |
25 |
7.5-8 |
70(4.8) |
35 |
Operating Limits
Maximum working pressure |
150psi(10bar) |
Maximum water inlet temperature |
45℃ |
Maximum water inlet flow |
2GPM(7.6L/min) |
Maximum water inlet SDI15 |
5 |
Maximum residual chlorine concentration(mg/L) |
0.1 |
pH Range |
2-11 |
Maximum water inlet turbidity/NTU |
1 |
Maximum allowable pressure drop of a single membrane element |
10psi(0.07MPa) |