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RO membranes are the most accurate of all purification membranes. A high quality RO membrane can completely remove suspended particles, viruses, fine seedlings, organic matter, heavy metals and other harmful substances from the water. It also effectively reduces the salt content of the water and improves the taste.
Specifications and main performance of membrane elements
| Type | Model | Reject (%) | Average Permeate GPD (m3/d) | Working Pressure & Application | Testing Conditions | ||
| Pressure psi (MPa) | Solution Concentr. (PPm) | Recovery Rate (%) | |||||
| Household RO Membrane | UM1812-50 | 99.0 | 50(0.2) | Working under extremely low pressure. Applicable to residential water purifier and water purifying devices in hospital and laboratory water treatment with TDS lower than 500 ppm. | 60 (0.41) | 250 | 15 |
| UM1810-50 | 97.0 | 50(0.2) | |||||
| UM1812-75HR | 99.0 | 75 (0.28) | |||||
| UM1812-75 | 97.0 | 75 (0.28) | |||||
| UM-2012-100HR | 99.0 | 100 (0.38) | |||||
| UM-2012-100 | 97.5 | 100 (0.38) | |||||
| UM-2012-150 | 97.5 | 150(0.57) | |||||
| Special Size RO Membrane | UM-2812-200 | 97.0 | 200(0.76) | working under extremely low pressure. Applicable to automatic water dispenser and residential drinking fountain. | 100 (0.69) | 250 | 20 |
| UM-3012-300 | 97.0 | 300(1.14) | 100 (0.69) | 250 | 20 | ||
| UM-3012-400 | 97.0 | 400(1.51) | 100 (0.69) | 250 | 20 | ||
| UM-3013-400 | 97.0 | 400(1.51) | 100 (0.69) | 250 | 20 | ||
| UM-3012-500 | 97.0 | 500(1.89) | 100 (0.69) | 250 | 20 | ||
| UM-3013-500 | 97.0 | 500(1.89) | 100 (0.69) | 250 | 20 | ||
| UM-3013-600 | 97.0 | 600(2.27) | 100 (0.69) | 250 | 20 | ||
| UM-3013-700 | 97.0 | 700(2.65) | 100 (0.69) | 250 | 20 | ||
Test conditions: Test pressure: 100 psi (0.69Mpa)
Test fluid temperature: 25 °C
Test solution concentration (NaCI): 250ppm
pH value of test solution: 7.5
Single membrane element recovery rate: 20%
Principle of Reverse Osmosis
RO reverse osmosis, a membrane separation operation in which a pressure difference is used as a driving force to separate a solvent from a solution. Pressure is applied to the feed solution on one side of the membrane, and when the pressure exceeds its osmotic pressure, the solvent permeates backwards in the direction of natural osmosis.
This results in a permeate, or permeate, on the low pressure side of the membrane and a concentrate, or concentrate, on the high pressure side. If seawater is treated by reverse osmosis, fresh water is obtained on the low-pressure side of the membrane and brine is obtained on the high-pressure side.
Reverse osmosis usually uses asymmetric and composite membranes. The equipment used for reverse osmosis is mainly hollow fibre or rolled membrane separation equipment. Reverse osmosis membranes retain all kinds of inorganic ions, colloidal substances and macromolecular solutes in the water, resulting in clean water. It can also be used for the pre-concentration of large organic solutions.
Due to the simplicity of the process and low energy consumption, reverse osmosis has developed rapidly in the last 20 years. It has been used on a large scale for desalination of seawater and brackish water (see brine), softening of boiler water and wastewater treatment, and in combination with ion exchange to produce high purity water, and is now being expanded for the concentration of dairy products, fruit juices and the separation and concentration of biochemical and biological preparations.
If you would like to know more about our RO membranes, please contact us！
RO membranes are the most accurate of all purification membranes. A high quality RO membrane can completely remove suspended particles, viruses, fine seedlings, organic matter, heavy metals and other harmful substances from the water. It also effectively reduces the salt content of the water and improves the taste.
Specifications and main performance of membrane elements
| Type | Model | Reject (%) | Average Permeate GPD (m3/d) | Working Pressure & Application | Testing Conditions | ||
| Pressure psi (MPa) | Solution Concentr. (PPm) | Recovery Rate (%) | |||||
| Household RO Membrane | UM1812-50 | 99.0 | 50(0.2) | Working under extremely low pressure. Applicable to residential water purifier and water purifying devices in hospital and laboratory water treatment with TDS lower than 500 ppm. | 60 (0.41) | 250 | 15 |
| UM1810-50 | 97.0 | 50(0.2) | |||||
| UM1812-75HR | 99.0 | 75 (0.28) | |||||
| UM1812-75 | 97.0 | 75 (0.28) | |||||
| UM-2012-100HR | 99.0 | 100 (0.38) | |||||
| UM-2012-100 | 97.5 | 100 (0.38) | |||||
| UM-2012-150 | 97.5 | 150(0.57) | |||||
| Special Size RO Membrane | UM-2812-200 | 97.0 | 200(0.76) | working under extremely low pressure. Applicable to automatic water dispenser and residential drinking fountain. | 100 (0.69) | 250 | 20 |
| UM-3012-300 | 97.0 | 300(1.14) | 100 (0.69) | 250 | 20 | ||
| UM-3012-400 | 97.0 | 400(1.51) | 100 (0.69) | 250 | 20 | ||
| UM-3013-400 | 97.0 | 400(1.51) | 100 (0.69) | 250 | 20 | ||
| UM-3012-500 | 97.0 | 500(1.89) | 100 (0.69) | 250 | 20 | ||
| UM-3013-500 | 97.0 | 500(1.89) | 100 (0.69) | 250 | 20 | ||
| UM-3013-600 | 97.0 | 600(2.27) | 100 (0.69) | 250 | 20 | ||
| UM-3013-700 | 97.0 | 700(2.65) | 100 (0.69) | 250 | 20 | ||
Test conditions: Test pressure: 100 psi (0.69Mpa)
Test fluid temperature: 25 °C
Test solution concentration (NaCI): 250ppm
pH value of test solution: 7.5
Single membrane element recovery rate: 20%
Principle of Reverse Osmosis
RO reverse osmosis, a membrane separation operation in which a pressure difference is used as a driving force to separate a solvent from a solution. Pressure is applied to the feed solution on one side of the membrane, and when the pressure exceeds its osmotic pressure, the solvent permeates backwards in the direction of natural osmosis.
This results in a permeate, or permeate, on the low pressure side of the membrane and a concentrate, or concentrate, on the high pressure side. If seawater is treated by reverse osmosis, fresh water is obtained on the low-pressure side of the membrane and brine is obtained on the high-pressure side.
Reverse osmosis usually uses asymmetric and composite membranes. The equipment used for reverse osmosis is mainly hollow fibre or rolled membrane separation equipment. Reverse osmosis membranes retain all kinds of inorganic ions, colloidal substances and macromolecular solutes in the water, resulting in clean water. It can also be used for the pre-concentration of large organic solutions.
Due to the simplicity of the process and low energy consumption, reverse osmosis has developed rapidly in the last 20 years. It has been used on a large scale for desalination of seawater and brackish water (see brine), softening of boiler water and wastewater treatment, and in combination with ion exchange to produce high purity water, and is now being expanded for the concentration of dairy products, fruit juices and the separation and concentration of biochemical and biological preparations.
If you would like to know more about our RO membranes, please contact us！
