The A-Series, family of proprietary thin-film reverse osmosis membrane elements are characterized by high flux and excellent sodium chloride rejection. AG High Rejection Brackish Water Elements are selected when high rejection and operating pressures as low as 200 psig (1,379 kPa) are desired. These elements allow moderate energy savings, and are considered a standard in the industry. AG2521TF High Rejection Brackish Water elements feature a tape outerwrap and 28 mil feed spacers. This element is designed with male end connections.
Element Specifications
Model
Flow
Active Area
Avg. Rejection
Min. Rejection
Part Number
AG2521TF
325 GPD (1.2 m3/d)
12 ft2 (1.2 m2)
99.5%
99%
1206719
Specifications are based on a 2000 mg/L NaCl solution at 225 psig operating pressure (1551 kPa), 77°F (25°C), 15% recovery, pH 7.5 after 24 hours. Individual flux may vary +25%/ -15%.
Operating and Design Parameters
Membrane:
Thin Film Membrane (TFM®)
Typical Operating Pressure:
200 psig (1,379 kPa)
Maximum Pressure:
450 psig (3,103 kPa)
Maximum Temperature:
122°F (50°C)
Chlorine Tolerance:
1,000 ppm-hrs, dechlorination recommended
Optimum Rejection pH:
7.0 -7.5
Operating pH Range:
4.0 - 11.0
Cleaning pH Range:
2.0 - 11.5
Feed NTU:
<1
Feed SDI:
<3
Typical Operating Flux:
10-20 GFD (15-35) L.H-1.M-2
Element Dimensions and Weight
Model Number Legend
AG
2521
T
F
Model
Dimension A
Dimension B
Dimension C*
Weight
AG2521TF
21" (533 mm)
0.75" (19 mm)
2.40" (61 mm)
1.3 lbs (0.6 kg)
*The element diameter (dimension C) is designed for optimum performance in Osmonics pressure vessels. Other pressure vessel dimension and tolerance may result in excessive bypass and loss of capacity.
