Commercial Seawater RO Membranes
Commercial Seawater Desalination RO Membranes
UltraClean commercial seawater desalination RO membranes can ensure large flux while taking into account excellent rejection rate, which can meet the needs of seawater desalination installed on sea and land. At the same time, the operating pressure is lower, which can reduce the cost of high-pressure pumps and reduce operating costs. The advanced automatic precision manufacturing technology is adopted to make the performance of the membrane element reliable and stable.
-
High flux and reliable stability
-
Low operating pressure
Product Dimensions
Model
A inch (mm)
B inch (mm)
C inch (mm)
D inch (mm)
SW 2540-28HR
40(1,016)
1.19(30.2)
0.75(19)
2.4(61)
SW 4021-33HR
21(533)
1.05(26.7)
0.75(19)
3.9(99)
SW 2521-12HR
21(533)
1.19(30.2)
0.75(19)
2.4(61)
SW 2540-28HRLE
40(1,016)
1.19(30.2)
0.75(19)
2.4(61)
SW 4021-33HRLE
21(533)
1.05(26.7)
0.75(19)
3.9(99)
SW 2521-12HRLE
21(533)
1.19(30.2)
0.75(19)
2.4(61)
Product Specifications
Model
Effective Membrane ft² (㎡)
Stabilized Rejection Rate(%)
Minimum Rejection Rate(%)
Flux, gpd (m³/d)
SW 2540-28HR
28(2.6)
99.70
99.55
580(2.2)
SW 4021-33HR
33(3.1)
99.65
99.55
660(2.5)
SW 2521-12HR
12(1.1)
99.60
99.50
240(0.9)
SW 2540-28HRLE
28(2.6)
99.65
99.50
680(2.6)
SW 4021-33HRLE
33(3.1)
99.60
99.50
790(3)
SW 2521-12HRLE
12(1.1)
99.55
99.40
290(1.1)
Flux and rejection rate is based on the following standard test conditions: 5.5 MPa (800 psi) pressure, 77°F (25°C), 32,000 ppm NaCl solution and pH 8 for feedwater, and 8% recovery.
Operating and Cleaning Limits
- Maximum Operating Pressure 69 bar (1000 psi)
- Maximum Operating Temperature 45°C (113°F )
- Maximum Element Pressure Drop 1.0 bar (15psi)
- pH Range Continuous Operation 2-11
- pH Range Short-Term Cleaning 1-13
- Maximum Feed SDI(SDI ) 5.0
- Free Chlorine Tolerance < 0.1 ppm
Notes
- Permeate flow for individual elements may vary ±15 percent from the value specified.
- Active membrane area guaranteed ±4%.
- Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending upon feedwater characteristics and operating conditions.