Independently developed by VONTRON, the RO element ULP1812-50 is designed for the treatment of low-salinity water resources such as tap water, well water, etc. Working under extra-low pressure, it is applicable to water purifying devices in residence, hospital, and laboratory.
Properties and Testing Conditions
| Model |
Average Permeate (GPD) |
Stable Rejection (%) |
Min. Rejection (%) |
| ULP1812-75 |
75 |
97.5 |
96 |
Notes: Permeate of a single element may vary within [-20%] ~ [+20%]
Testing Conditions:
Testing Pressure: 60 psi (0.41MPa)
The temperature of Testing Solution: 25°C
The concentration of Testing Solution (NaCl): 250 ppm
the pH of Testing Solution: 6.5~8.5
Recovery of Single Element: 15%
Properties and Testing Conditions
| Model |
ULP-1812-50 |
ULP-1812-75 |
ULP- 1812-100 |
| Perfor-mance |
Stable Desalination % |
97 |
97 |
97 |
| Min. Desalination % |
96 |
96 |
96 |
| Mean Permeable Flow GPD (L/d) |
50 (204) |
75 (281) |
100 (380) |
| Active Film Area ft2(m2) |
3.5 (0.32) |
4.2 (0.38) |
5.0 (0.46) |
| Test Conditions |
Pressure |
65psi (0.45Mpa) |
| Water Temp. |
25℃ |
| Concentration(NaCl) |
500ppm |
| Water PH |
6.5 to 7.5 |
| Recovery Rate % |
15 |
| Operating Conditions |
Max. Operating Pressure |
200psi (2.0Mpa) |
| Max. Feed Water Temp. |
45℃ |
| Max. Feed Water Silt Density Index (SDI) |
5 |
| Feed Water Chlorine Tolerance |
< 0.1 mg/l |
| Feed Water PH Range, Continuous Operation |
3 to 10 |
| Feed Water PH Range, Short-Term Cleaning |
2 to 11 |
| Max. Pressure Drop of Single Membrane |
10psi (0.07Mpa) |
