ULP-400HR Membrane
Product Introduction
The ultra-low pressure membrane elements are made by winding specially developed ultra-low pressure polyamide composite membranes. This series is suitable for desalination of feed water with a salt concentration below 3,000 mg/L. These products feature high salt rejection, low operating pressure, and high water flux. They are widely applicable in desalination projects using municipal tap water, groundwater, and other low-salinity sources, such as point-of-use drinking water in residential communities and process water in the food and beverage industry.
Product Specifications and Performance Parameters
|
Model |
Stable Salt Rejection Rate |
Minimum Salt Rejection Rate |
Permeate Flow |
Effective Membrane Area |
Feed Spacer |
Test Solution Concentration |
Test Pressure |
|||
|
% |
% |
GPD |
m³/d |
ft2 |
m2 |
mil |
mg/L |
psi |
MPa |
|
|
ULP-400HR |
99.5 |
99.2 |
11000 |
41.6 |
400 |
37.2 |
32 |
1500 |
150 |
1.03 |
Test Conditions ：NaCl aqueous solution, temperature 25 ℃, pH value 7.5–8.0, recovery rate 15%; permeate flow variation range ±15%.
Operating Conditions
|
Maximum Operating Pressure |
600 psi (4.14 MPa) |
|
Maximum Feed Water Temperature |
45 ℃ |
|
Maximum Feed Flow Rate |
17.0 m3/h (8040)、3.6 m3/h (4040) |
|
Maximum Feed Water SDI15 |
5.0 |
|
Free Chlorine Tolerance |
0.1 mg/L |
|
Operating pH Range (Continuous Operation) |
2-11 |
|
Cleaning pH Range (30 minutes max) |
1-13 |
|
Maximum Allowable Pressure Drop per Element |
15 psi (0.10 MPa) |
