Low Pressure and High Permeate Flux Series RO Membrane Elements
Sapstone commercial ultra-low-pressure, high-throughput reverse osmosis membrane element (SLE Series) has a uniform pore size distribution, which ensures high precision separation. To achieve a extreme high water yield and reasonable rejection rate, longer working time through a small element size. For these characteristics, they are widely applied in drinking water, food industry, pharmacy and laboratory.
Specification and Main Performance of RO Membrane Elements
|
Type
|
Model
|
Performance
|
|
Stable Rejection
/ %
|
Average permeate flux
/gpd (m3/d)
|
Recovery
/ %
|
|
SLE Series
|
SLE-3213-600
|
92.0
|
600（2.3）
|
20
|
|
SLE-3413-800
|
90.0
|
800（3.0）
|
|
Testing Conditions:
|
|
|
Testing Concentration（NaCl）
|
250 mg/L
|
|
Testing Pressure
|
100 psi（0.7 MPa）
|
|
Temperature of Testing Solution
|
25 ℃
|
|
pH Value of Testing Solution
|
7.5
|
|
Operation Limits and Conditions:
|
|
|
Membrane Type
|
Polyamide Thin-Film Composite
|
|
Max Working Pressure
|
300 psi（2.07 MPa）
|
|
Max Inflow Temperature
|
45℃
|
|
Max Inflow SDI15
|
5
|
|
Residual Chlorine Concentration of Feedwater
|
＜0.1 mg/L
|
|
pH Range of FeedwaterDuring Continuous Operation
|
3～10
|
|
pH Range of FeedwaterDuring Chemical Cleaning
|
2～12
|
|
Max Pressure Drop of Single Membrane Element
|
10 psi（0.07MPa）
|