GE P&W Spiral Wound Membranes - AK Series - Manual

Fact Sheet
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FS1263EN.doc Nov-13
AK Series
Low Energy Brackish Water RO Elements
The A-Series, family of proprietary thin-film reverse
osmosis membrane elements are characterized by
high flux and high sodium chloride rejection. AK
Low Pressure Brackish Water Elements are select-
ed when high rejection and low operating pres-
sures are desired. These elements allow significant
energy savings since good rejection is achieved at
operating pressures as low as 100 psi (689 kPa).
Table 1: Element Specification
Membrane A-series, thin-film membrane (TFM*)
Model
Average
permeate flow
gpd (m3/day)
1,2
Average NaCl
rejection 1,2
Minimum NaCl
rejection 1,2
AK2540TM 710 (2.7) 99.0% 98.0%
AK4040C 2,500 (9.5) 99.0% 98.0%
AK4040FM 2,200 (8.3) 99.0% 98.0%
AK4040FM, WET 2,200 (8.3) 99.0% 98.0%
AK4040TM 2,200 (8.3) 99.0% 98.0%
AK8040C 9,900 (37.5) 99.0% 98.0%
AK8040F 9,600 (36.3) 99.0% 98.0%
AK8040F, WET 9,600 (36.3) 99.0% 98.0%
AK8040F 400 10,500 (37.9) 99.0% 98.0%
AK8040F 400 WET 10,500 (39.7) 99.0% 98.0%
1 Average salt rejection after 24 hours operation. Individual flow rate may vary
+25%/-15%.
2 Testing conditions: 500ppm NaCl solution at 115psi (793kPa) operating pres-
sure, 77°F (25°C), pH7.5 and 15% recovery.
Model
Membrane
area
ft 2 (m 2 )
Outer wrap
Part
Number
AK2540TM 27 (2.5) Tape 1206802
AK4040C 95 (8.8) Cage* 1223696
AK4040FM 85 (7.9) Fiberglass 3039082
AK4040FM, WET 85 (7.9) Fiberglass 3044157
AK4040TM 85 (7.9) Tape 3039149
AK8040C 380 (35.3) Cage* 1206819
AK8040F 365 (33.9) Fiberglass 3039160
AK8040F, WET 365 (33.9) Fiberglass 3044153
AK8040F 400 400 (37.2) Fiberglass 3039161
AK8040F 400 WET 400 (37.2) Fiberglass 3039162
Figure 1: Element Dimensions Diagram - Female
Figure 2: Element Dimensions Diagram - Male