Low pressure reverse osmosis membrane OV-L
● Municipal water supply
● Surface water reuse
● Coal chemical industry
● Boiler makeup water for thermal power generation
● Food industry water supply
● Textile printing and dyeing
● Electroplating industry, etc.
● Product performance and characteristics
Low pressure (L) series is an aromatic polyamide composite membrane element developed by OVAY Technology for desalting medium and low concentration brackish water. It has the characteristics of high desalination rate and large flux, and can be widely used in municipal water supply, surface water reuse, coal chemical industry, thermal plant boiler make-up water, food industry water, textile printing and dyeing, electroplating industry and other fields.
● Specification parameters
Model of membrane element | Stable desalination rate(％) | Minimum desalination rate(％) | Average water productionGPD(m³/d) | Effective membrane areaft²(㎡) |
OV-L-4040 | 99.7 | 99.5 | 2600(9.8) | 100(9.3) |
OV-L-8040-400 | 99.7 | 99.5 | 10000(39.7) | 400(37.2) |
OV-L-8040-400PRO | 99.8 | 99.5 | 11500(43.5) | 400(37.2) |
OV-X-8040-440 | 99.7 | 99.5 | 12650(48.0) | 440(40.9) |
● Testing conditions
| Test pressure | 225psi(1.55 MPa) |
Test solution temperature | 25℃ |
Test solution concentration(NaCl) | 2000ppm |
| Test solution pH value | 7.5 |
| Recovery rate of single membrane element | 15% |
● Operating and cleanimg limits
Maximum operating pressure | 600psi(4.14 MPa) |
Maximum inlet flow rate | 75gpm (17m³/h) (8040) |
16gpm (3.6m³/h) (4040) | |
Maximum inlet temperature | 45℃ |
Maximum inletSDI15 | 5 |
Inlet free chlorine concentration | ＜0.1 ppm |
Inlet pH range for continuous operation | 2-11 |
| Inlet pH range for chemical cleaning | 1-13 |
Maximum pressure drop of single membrane element | 15psi(0.1 MPa) |