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Brief Introduction
Ultra low pressure membrane 4040 has good chemical stability, low pressure composite membrane and ultra low pressure composite membrane is the ideal reverse osmosis membrane for the preparation of high purity water today, compared with conventional RO membrane, it has the same high desalination rate and high water flux under low pressure. In addition, due to its neutral surface potential, it is more hydrophilic and resistant to contamination, and therefore has superior performance in the treatment of wastewater containing surface active substances that cause membrane fouling.
Specifications and Major Properties
| Model | Average Permeated Flow GPD (m3/d) | Stable Rejection Rate (%) | Minimum Rejection Rate (%) |
| IWL 21-8040 | 10000(37.8) | 99.5 | 99.2 |
| IML 22-8040 | 1 1000(41.5) | 99.5 | 99.2 |
| IWL 21-4040 | 2500(9.4) | 99.5 | 99.2 |
Testing Conditions:
Testing Pressure: 225 psi (1.55Mpa)
Temperature of Testing Solution: 25°C
Concentration of Testing Solution (NaCl): 2000ppm
pH Value of Testing Solution: 7.5
Recovery Rate of Single Membrane Element: 15%
Extreme Operation Conditions
Max. Working Pressure: 600psi(4. 14Mpa)
Max. Feedwater Flow: 75gpm(17 m3/h) (8040)
16gpm (3.6 m3/h) (4040)
Max. Feedwater T emperature: 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)
Dimensions of Membrane Element
All dimensions are shown in: millimeter (inch)
Features
1) High water flux and high desalination rate.
2)Good chemical stability (pH 2-12).
3)Long service life.
4)Resistant to biological contamination.
5)Wide range of pressures available (20-1000psi).
6)Wide range of temperatures (4°C-45°C).
7)Good economy.
Brief Introduction
Ultra low pressure membrane 4040 has good chemical stability, low pressure composite membrane and ultra low pressure composite membrane is the ideal reverse osmosis membrane for the preparation of high purity water today, compared with conventional RO membrane, it has the same high desalination rate and high water flux under low pressure. In addition, due to its neutral surface potential, it is more hydrophilic and resistant to contamination, and therefore has superior performance in the treatment of wastewater containing surface active substances that cause membrane fouling.
Specifications and Major Properties
| Model | Average Permeated Flow GPD (m3/d) | Stable Rejection Rate (%) | Minimum Rejection Rate (%) |
| IWL 21-8040 | 10000(37.8) | 99.5 | 99.2 |
| IML 22-8040 | 1 1000(41.5) | 99.5 | 99.2 |
| IWL 21-4040 | 2500(9.4) | 99.5 | 99.2 |
Testing Conditions:
Testing Pressure: 225 psi (1.55Mpa)
Temperature of Testing Solution: 25°C
Concentration of Testing Solution (NaCl): 2000ppm
pH Value of Testing Solution: 7.5
Recovery Rate of Single Membrane Element: 15%
Extreme Operation Conditions
Max. Working Pressure: 600psi(4. 14Mpa)
Max. Feedwater Flow: 75gpm(17 m3/h) (8040)
16gpm (3.6 m3/h) (4040)
Max. Feedwater T emperature: 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)
Dimensions of Membrane Element
All dimensions are shown in: millimeter (inch)
Features
1) High water flux and high desalination rate.
2)Good chemical stability (pH 2-12).
3)Long service life.
4)Resistant to biological contamination.
5)Wide range of pressures available (20-1000psi).
6)Wide range of temperatures (4°C-45°C).
7)Good economy.
