Product Introduction：
Naino ROA series membrane element adopts large flux, high desalination rate BW reverse osmosis diaphragm and diamond-shaped inlet channel, which has the advantages of low pressure, high flux and high desalination rate, and at the same time has certain pollution resistance characteristics and good cleaning performance.
The applicable water sources are pretreated surface water, groundwater, river water and tap water. It is widely used in water supply treatment, such as: drinking water, municipal tap water upgrading, industrial pure water/ultrapure water, etc
Performance parameters：
Model | ROA-8040/28FA | ROA-8040/34FA |
Diaphragm material | Modified aromatic polyamide（MAPA） | Modified aromatic polyamide（MAPA） |
Membrane area（ft2/m2） | 400（37）±3% | 365（34）±3% |
Flux（GPD/m3d） | 10500（40）±15% | 9500（36）±15% |
Salt rejection rate（%） | 99.5%（Min. 99.0%） |
Maximum operating temperature（℃） | ≤45 |
Maximum operating pressure（psi/bar） | ≤600（41） |
Routine operating pH | 2-10 |
Available in custom sizes | 1812/4020/7640/7940/8038/8338 |
Test conditions: 2000ppmNaCl, 25°C, pH =8, 15%Recovery, 255psi(1.55MPa)