The Walchin Reverse Osmosis (RO) Membrane Series utilizes the world’s most advanced polyamide composite RO membrane technology, carefully crafted with precision rolling techniques for superior water filtration. Designed to effectively remove various contaminants, it ensures clean and safe drinking water by eliminating:
✅ Organic matter, microorganisms & viruses
✅ Radioactive ions & carcinogenic factors
✅ Heavy metals, scale & other harmful impurities
Ideal for municipal tap water treatment, our membranes provide high-efficiency filtration for household water purification systems.
🔹 Customization Available! We offer OEM & bulk supply solutions to meet your business needs. Contact us via the Chat icon for tailored orders.
Performance parameters
Model |
Membrane Type |
Membrane area/ft² |
Flow GPD(m³/d) |
Stable desalination rate/% |
HQ-3013-500 |
Polyamide composite membrane |
15 |
500(63.08) |
96 |
Water production floating range:±20%
Model/Size(mm) |
A |
B |
C |
D |
E |
TW-3013-500 |
298 |
22.2 |
17 |
70 |
239 |
Test conditions
Test solution concentration(NaCl) |
Water temperature(℃) |
pH |
Operating pressure psi(MPa) |
Recovery rate(%) |
500ppm |
25 |
7.5-8 |
100(6.9) |
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) |