Low Pressure Series RO Membrane Elements
Sapstone SLE series RO membrane elements have a high water yield and regection, as well as a long working life. SLE series have the characteristics of high quality and low operation cost, and are free from pressure bucket as well as the second pollution. Currently, they are some of the most reliable and popular products in the industry.
Specification and Main Performance of RO Membrane Elements
|
Type
|
Model
|
Performance
|
|
Stable Rejection
/ %
|
Average permeate flux
/ gpd (m3/d)
|
Recovery
/ %
|
|
SLE Series
|
SLE-2812-200
|
96.0
|
200（0.8）
|
20
|
|
SLE-3012-300
|
96.0
|
300（1.2）
|
|
SLE-3012-400
|
96.0
|
400（1.6）
|
|
SLE-3013-400
|
96.0
|
400（1.6）
|
|
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（0.07 MPa）
|