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It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.
Model | Membrane ft2 (m2) | Average Permeate GPD(m3/d) | Stable Rejection % | Min. Rejection % |
RM-NF-4040 | 85 (7.9) | 2200 (7.9) | 55~75 | - |
RM-NF-8040 | 400 (37) | 9000 (33.9) | 55~75 | - |
Testing Pressure | 70 psi (0.48MPa) |
Temperature of Testing Solution | 25 ℃ |
Concentration of Testing Solution (NaCl) | 2000ppm NaCl;2000ppm MgSO4 |
pH Value of Testing Solution | 8 |
Recovery Rate of Single Element | 15% |
Max. Working Pressure | 600psi (4.14MPa) | Max. Feed Water COD | 10ppm |
Max. Feed Water Flow | 75 gpm (17m3/h) for 8040 | Max. Feed Water BOD | 5ppm |
Max. Feed Water TOC | 10ppm | ||
Max. Feed Water Temperature | 45°C | Residual Chlorine Concentration of Feed Water | <0.1 ppm |
Max. Feed Water TDS | 2000ppm | pH Range of Feed Water During Continuous Operation | 3~10 |
ax. Feed Water Hardness | 60ppm | Max. Pressure Drop of Single Element | 15psi (0.1MPa) 8040、4040 |
Max. Feed Water SD 115 | 5 | ||
Max.Turbidity NTU | 1.0 |
Note:
1. For the recommended design scope, please refer to the latest version of the technical manual, design guide, or consult with membrane technology experts. If the user does not strictly follow the operating conditions provided by the sample, Suzhou Runmo Water Treatment Technology Co., Ltd. will not bear all the consequences arising therefrom.
2. The average water yield listed in the table shows that the error of water yield of a single membrane element in series is within (+10%).
The difference between the minimum water yield and the nominal value of other series of single membrane elements is not more than 20% of the nominal value.
3. Wet membrane components are strictly tested before they leave the factory. They are stored in 1.0% sodium bisulfite solution. Then they are packed in vacuum and packed in cardboard boxes. The safe storage temperature of wet membrane components is 4-45 °C.
4. RO production water to be discharged in the first hour of operation.
5. During storage and operation, it is prohibited to add any chemicals that affect membrane components. In case of violating the use of such chemicals, Suzhou Runmo Water Treatment Technology Co., Ltd. will not bear all the consequences arising therefrom.

ULP/XULP series of membrane elements is suitable for desalination treatment of surface water, groundwater, tap water, and municipal water with salt content less than 2000 ppm. It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing, and pharmaceutical manufacturing.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.

highly purified water in the electronics and power industries.
It is suitable for desalination treatment of surface water, groundwater, tap water, and municipal water with salt content less than 10,000 ppm. It is mainly used for industrial pure water of various scales, boiler feed water of power plants, and other industrial water. It can also be used for the treatment of brackish water applications such as high-concentration saline wastewater and beverage water manufacturing.In the
FR series, the surface of this membrane was treated by special technology, which changed the electric charge and smoothness of the membrane surface, increased the hydrophilicity of the membrane surface, thus reducing the contamination of pollutants and microorganisms on the membrane surface, and
achieving the purpose of reducing the contamination of membrane components and prolonging the service life.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.

SW series membrane elements are suitable for the treatment of seawater and brackish water with high concentration. They can be used for the treatment of seawater desalination, desalination of brackish water with high concentration, boiler feed water in power plants, wastewater reuse, concentration and recovery of high-value-added substances such as food and medicine, etc.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.

Using modified PAN material, the ultrafiltration membrane has outstanding separation performance, good oxidation resistance, thermal stability, good mechanical properties, and permanent hydrophilicity. Despite the advantages mentioned above, the disadvantage is that the anti-pollution performance is slightly worse. For this reason, we overcome the above shortcomings by modifying the materials and membranes, and making their performance more excellent. Membrane filament has high strength and a breakage rate of less than three thousandths:
Unique central pipe bracket with uniform filament distribution and smooth water flow can prolong the service life of the membrane filament; reliable performance, water washing, and medication washing will not affect the normal use of the membrane. According to the water quality conditions, full filtration and cross-flow filtration can be selected. Full-volume filtration has the advantages of energy saving and high water utilization rate; cross-flow filtration can discharge pollutants in time, reduce the times of membrane cleaning, and prolong the service life of membrane components. Compared with traditional filtration methods, this system has the advantages of high automation, small floor area (only 1/2 of traditional filtering methods), high filtration accuracy, unattended, and it is a good option for reverse osmosis pretreatment.
It is mainly used in various fields of industry, such as pure water, boiler recharge water, food processing and pharmaceutical manufacturing.