Extremely Low Energy Series RO Membrane Elements
Sapstone domestic and commercial RO membrane element XLE series have a unique function of membrane surface layer, enabling the membrane element to work normally under water pressure so as to guarantee high water yield at the same time to ensure high desalination rate, effectively removing the organic matter, microorganisms, viruses and other macromolecules in the water while maintaining some sodium, potassium, calcium, magnesium, plasma and some mineral nutrition content. Its low running pressure provides clients with the best system comprehensive performance and operation efficiency.
Specification and Main Performance of RO Membrane Elements
|
Type
|
Model
|
Performance
|
|
Stable Rejection
/ %
|
Average permeate flux
/ gpd (m3/d)
|
Recovery
/ %
|
|
XLE Series
|
XLE-1812-50
|
93.0
|
50（0.2）
|
20
|
|
XLE-2812-125
|
93.0
|
125（0.5）
|
|
Testing Conditions:
|
|
|
Testing Concentration（NaCl）
|
250 mg/L
|
|
Testing Pressure
|
36 psi（0.25 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 Feedwater During Continuous Operation
|
3～10
|
|
pH Range of Feedwater During Chemical Cleaning
|
2～12
|
|
Max Pressure Drop of Single Membrane Element
|
10 psi（0.07 MPa）
|