Description
| Model | Active Membrane Area m2 | Average Permeated Flow GPD (m3/d) | Stable Rejection Rate (%) | Minimum Rejection Rate (%) |
| SW21-4040 | 7.9 | 1400 (5.3) | 99.5 | 99.2 |
Conversions
- 1 US Gallon = 3.785 Liters
- GPD x 3.785 / 24 hours = Liters per hour
Testing Conditions:
- Testing Pressure: 800 psi (5.5Mpa)
- Temperature of Testing Solution: 25 °C
- Concentration of Testing Solution (NaCl): 32800ppm
- pH Value of Testing Solution: 7.5
- Recovery Rate of Single Membrane Element:
- 8% (8040-size, 4040-size and 2540-size)
- 4% (4021-size and 2521-size)
Operating Limits
- Max. Working Pressure: 1000psi (6.9Mpa)
- Max. Feedwater Flow:
- 7.5gpm (1 700l/h) (8040)
- 1.6gpm (360l/h) (4040)
- 0.14gpm (31l/h) (2521)
- Max. Feedwater Temperature: 45°C
- Max. Feedwater SDI: 5
- Residual chlorine Concentration of Feedwater: <0.1ppm
- pH Range of Feedwater during Continuous Operation: 3~10
- pH Range of Feedwater during Chemical Cleaning: 2~12
- Max. Pressure Drop of Single Membrane Element:
- 15psi (0.1Mpa) (8040, 4040 & 2540)
- 10psi (0.07Mpa) (2521 & 4021)
Vontron reverse osmosis membrane SW21-4040
