The LP low-pressure reverse osmosis membrane elements are aromatic polyamide composite membrane elements used for desalination of medium to low concentration brackish water. They feature high desalination rates and high flux. Under lower operating pressure conditions, they achieve the same high water flux and desalination rates, thereby reducing investment costs for pumps, pipes, containers, and other equipment, as well as operational costs for the reverse osmosis system.
LP low-pressure reverse osmosis membrane
Product Parameters
|
Category |
Model |
Effective membrane area ft²(m²) |
Water yield GPD(M³/d) |
Stable desalination rate (%) |
|
Low pressure LP |
LP-4040-100 |
100(9.3) |
2400(9.1) |
99.5 |
|
LP-8040-400 |
400(37.2) |
10500(39.7) |
99.5 |
|
|
LP-8040-440 |
440(40.9) |
12000(45.4) |
99.5 |
Performance Test Conditions
|
Serial Number |
Project |
Data |
|
1 |
Test solution concentration |
1500NaCL(ppm) |
|
2 |
Test pressure |
150psi(1.03MPa) |
|
3 |
TEST TEMPERATURE |
25 ℃ |
|
4 |
PH of test solution |
7 to 8 |
|
5 |
Recovery rate of single branch membrane element |
15% |
Conditions of use
|
Serial Number |
Project |
Data |
|
1 |
Maximum operating pressure |
600Psi(4.14MPa) |
|
2 |
Maximum influent flow |
16gpm(3.6m³/h)(NFR-4040) |
|
75gpm(17.0m³/h)(NFR-8040) |
||
|
3 |
Maximum inlet water temperature |
45 ℃ |
|
4 |
Maximum Intake SDI |
5 |
|
5 |
Maximum influent residual chlorine concentration |
<0.1ppm |
|
6 |
PH range of intake water in continuous operation |
3 to 10 |
|
7 |
pH range: Short-term cleaning (30 minutes) |
2 to 12 |
|
8 |
Maximum pressure drop of single branch membrane element |
15psi(0.10MPa) |
