Product introduction and application range
1. ULP series low pressure desalination reverse osmosis membrane element is a polyamide composite membrane developed by Shanghai Feizuo company for surface water and groundwater. It has the characteristics of low pressure operation, high water production and good desalination performance. It can achieve the same high water flux and high salt rejection as conventional low-pressure membranes at lower operating pressures. Its operating pressure is about 2/3 of the operating pressure of conventional low-pressure composite membranes. It can be used for surface water with a salt content below 2000ppm, Groundwater and municipal tap water treatment, among which 2.5-inch desalination membranes are mainly used in small commercial water purifiers, hospitals, and laboratory water purifiers. Among them, the 4-inch desalination membrane is mainly used in small-scale process pure water and ultrapure water used in medicine, food, and electronics factories, and can also be used for desalination and purification in water supply stations such as schools and communities. 8-inch desalination membranes are mainly used in large and medium-sized chemical, pharmaceutical, food, power plants, electronic plants, process pure water, boiler make-up water, etc., and can also be used for desalination and purification of municipal water.
| Model | Active Are a ft2(m2) | Feed Spacer Thickness(mil) | Permeate Flow Rate GPD(m3/d) | Stabilized Salt Rejection (%) | Minimum Salt Rejection (%) |
| FZ-ULP-8040-400 | 400 (37.2) | 32 | 10000 (37.9) | 99.30 | 99.00 |
| FZ-ULP-8040-420 | 420 (39) | 30 | 10500 (39.7) | 99.30 | 99.10 |
| FZ-ULP-8040-440 | 440 (41.0) | 28 | 11000 (41.6) | 99.40 | 99.20 |
| FZ-ULP-4040 | 85 (7.9) | 32 | 2400 (9.1) | 99.30 | 99.00 |
| FZ-ULP-4040P | 93 (8.6) | 28 | 2500 (9.5) | 99.40 | 99.20 |
| FZ-ULP-4040M | 103 (9.6) | 28 | 2600 (9.8) | 99.40 | 99.20 |
| FZ-ULP-4021 | 36 (3.3) | 28 | 1000 (3.78) | 99.00 | 98.50 |
| FZ-ULP-2540 | 28 (2.6) | 28 | 750 (2.84) | 99.00 | 98.50 |
| FZ-ULP-2521 | 14 (1.3) | 28 | 300 (1.13) | 99.00 | 98.50 |
2. Element Dimension :
| Model | Length | Diameter | Permeate Tube inner Diameter | Permeate Tube
Extension Length |
| inch | mm | inch | mm | inch | mm | inch | mm |
| 8040 | 40 | 1016 | 7.9 | 201 | 1.12 | 28.5 | / | / |
| 4040 | 40 | 1016 | 3.9 | 99 | 0.75 | 19.1 | 1.04 | 26.5 |
3. Test condition :
| Test Pressure | 150psi ( 1.03Mpa ) |
| Test Temperature | 25℃ |
| Test Liquid concentration ( NaCI ) | 1500ppm |
| Testing Liquid PH data | 7.5 |
| Recovery rate of single RO membrane element | 15% |
4. Operative limits
| Highest temperature of Inlet water | 113 F ( 45℃ ) |
| Highest Operating Pressure | 600psi ( 5.14Mpa ) |
Maximum Pressure Drop
of Single RO Membrane element | 15psi (0.1M Pa) |
| Inlet water PH data range of continuous operating | 3 - 10. |
| Inlet water PH data range of chemical cleaning | 2 - 12. |
| Highest Inlet water flow | 16gpm ( 3.6m/h ) |
| Biggest Inlet water SDI 15 | 5 |
| Inlet water free chlorine concentration | < 0.1ppm |
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