GE P&W AK LE Series User Manual
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FSpwAKLESeries_EN Oct-11
Fact Sheet
Membrane
Thin-film membrane (TFM*)
Model
Average
permeate flow
gpd (m3/day)
1,2
Average
NaCl
rejection
1,2
Minimum
NaCl
rejection
1,2
AK-90 LE
2800 (10.6)
99.3%
99.0%
AK-400 LE
12300 (46.6)
99.3%
99.0%
AK-440 LE
13500 (51.1)
99.3%
99.0%
Model
Active area
ft2 (m2)
Outer wrap
Part
number
AK-90 LE
90 (8.4)
Fiberglass
3056683
AK-400 LE
400 (37.2)
Fiberglass
3056684
AK-440 LE
440 (40.9)
Fiberglass
3056685
Typical Operating Pressure
110 psi (758 kPa)
Typical Operating Flux
10-20GFD (15-35LMH)
Maximum Operating Pressure
400 psi (2,758 kPa)
Maximum Temperature
Continuous operation: 122°F (50°C)
Clean-In-Place (CIP): 122°F (50°C)
pH range
Optimum rejection: 7.0-7.5,
Continuous operation 4.0-11.0,
Clean-In-Place (CIP): 2.0-11.5
Maximum Pressure Drop
Over an element: 12 psi (83 kPa)
Per housing: 50 psi (345 kPa)
Chlorine Tolerance
1,000+ ppm-hours,
dechlorination recommended
Feedwater3
NTU < 1
SDI < 5
AK LE Series
High Flow Low Energy Brackish Water RO Elements
The A-Series family of proprietary thin-film reverse
osmosis membrane is characterized by high flux
and high sodium chloride rejection. AK LE brackish
water elements are selected when high rejection,
high flow and ultra-low operating pressures are
desired.
The AK LE element is a low energy high flow element for beverage, light commercial, residential
and general industrial applications. AK LE Series
elements feature a Fiberglass outer wrap.
Table 1: Element Specification
1
Average salt rejection after 24 hours operation. Individual flow rate
may vary +25%/-15%.
2
Testing conditions: 500ppm NaCl solution at 115psi (793kPa) operat-
ing pressure, 77°F (25°C), pH7 and 15% recovery.
Table 2: Operating and CIP parameters
3
SDI is measured on a non-linear scale using a 0.45 micron filter paper.
Additionally, finer colloids, particulates and microorganisms that pass
through the filter paper and not measured in the SDI test, will potentially foul the RO element. For performance consistency and project warranty, please use Winflows projection software and consult your Filters
with Membranes representative.
Figure 1a: Element Dimensions Diagram – Male
Figure 1b: Element Dimensions Diagram – Female
Model1
Type
Dimensions, inches (cm)
Boxed
A
B2
C
Weight
lbs (kg)
AK-90 LE
Male
40.0 (101.6)
0.75 (1.90)
3.9 (9.9)
9 (4)
AK-400 LE
Female
40.0 (101.6)
1.125 (2.86)
7.9 (20.1)
35 (16)
AK-440 LE
Female
40.0 (101.6)
1.125 (2.86)
7.9 (20.1)
35 (16)
Table 3: Dimensions and Weights
Page 2 FSpwAKLESeries_EN
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