Low Energy Series RO Membrane Elements
The performance of Sapstone domestic RO membrane element SLE series is stable; Membrane element leaves factory as dry membrane element, convenient for transportation, extending the shelf life of membrane. Domestic super low pressure reverse osmosis membrane element is mainly suitable for urban and rural tap water, or low salinity water.
Specification and Main Performance of RO Membrane Element
|
Type
|
Model
|
Performance
|
|
Stable Rejection
/ %
|
Average permeate flux
/gpd (m3/d)
|
Recovery
/ %
|
|
Residential Membrane Element
|
SLE-1810-50
|
97.0
|
50（0.20）
|
20
|
|
SLE-1812-50
|
97.0
|
50（0.20）
|
|
SLE-1812-75
|
96.5
|
75（0.28）
|
|
SLE-2012-100
|
96.0
|
100（0.40）
|
|
Testing Conditions：
|
|
|
Testing Concentration（NaCl）
|
250 mg/L
|
|
Testing Pressure
|
60 psi（0.4 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 Feed water
|
＜0.1 mg/L
|
|
pH Range of Feed wate rDuring Continuous Operation
|
3～10
|
|
pH Range of Feed water During Chemical Cleaning
|
2～12
|
|
Max Pressure Drop of Single Membrane Element
|
10 psi（0.07 MPa）
|