Product Introduction
he Walchin Reverse Osmosis (RO) Membrane Series features the world’s most advanced polyamide composite RO membrane technology, carefully crafted using cutting-edge membrane element rolling technology. Designed for domestic water filtration, these membranes effectively remove a wide range of contaminants, including:
✅ Organic matter, microorganisms, and viruses
✅ Radioactive ions and carcinogenic factors
✅ Heavy metals, scale, and other harmful impurities
Ideal for municipal tap water treatment, our high-performance membranes ensure clean, safe drinking water for households.
As a trusted RO membrane manufacturer, we offer customization options to meet your specific needs. For bulk orders or tailored solutions, please contact us via the Chat icon.
Performance parameters
Model |
Membrane Type |
Membrane area/ft² |
Flow GPD(m³/d) |
Stable desalination rate/% |
TW-2812-200 |
Polyamide composite membrane |
11.0 |
200(31.54) |
97 |
Water production floating range:±20%
Model/Size(mm) |
A |
B |
C |
D |
E |
TW-2812-200 |
298 |
22.2 |
17 |
53 |
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) |