GE P&W Spiral Wound Membranes - AD LE Series - Manual

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FSsmADLESeries_EN.doc Oct-11
Fact Sheet
AD LE Series
High Rejection High Flow Seawater RO Elements
The AD LE Series, family of proprietary thin film re-
verse osmosis membrane elements, is character-
ized by an excellent sodium chloride rejection. AD
LE series is selected when high quality permeate is
demanded from seawater that is relatively high in
TDS.
AD LE Series new membrane chemistry provides
excellent rejection characteristics when operated at
seawater operating conditions (pressures exceed-
ing 800psi (5,516kPa) and elevated seawater tem-
peratures.
Table 1: Element Specification
Model
Average
permeate
flow gpd
(m3/day) 1,2
Average
NaCl
rejection 1,2
Minimum
NaCl
rejection 1,2
Minimum
Boron
rejection 2
AD-400 LE 7500 (28.4) 99.75% 99.3% 91.0%
AD-440 LE 8200 (31.0) 99.75% 99.3% 91.0%
1 Average salt rejection after 24 hours operation. Individual flow rate
may vary +25%/-15%.
2 Testing conditions: 32,000mg/l NaCl & 5mg/l Boron solution at 800psi
(5,516kPa) operating pressure, 77°F (25°C), pH 8.0 and 7% recovery.
Model Active area
ft 2 (m 2 )
Outer wrap
Part
number
AD-400 LE 400 (37.2) Fiberglass 3056658
AD-440 LE 440 (40.9) Fiberglass 3056659
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 potential-
ly foul the RO element. For performance consistency and project war-
ranty, please use Winflows projection software and consult your Filters
with Membranes representative.
Figure 1: Element Dimensions Diagram – Female
Table 3: Dimensions and Weights
Model 1 Type
Dimensions, inches (cm) Boxed
A B 2 C
Weight
lbs (kg)
AD-400 LE Female 40.0 (101.6) 1.125 (2.86) 7.9 (20.1) 35 (16)
AD-440 LE Female 40.0 (101.6) 1.125 (2.86) 7.9 (20.1) 35 (16)
Membrane Thin-film membrane (TFM*)
Typical Operating Pressure 800psi (5,516kPa)
Typical Operating Flux 7-11GFD (12-19LMH)
Maximum Operating Pressure 1,200psi (8,274kPa)
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
Feedwater 3 NTU < 1
SDI < 5