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1.4.5 Reverse Osmosis Membrane Element Rejection
E8-CE RO machines use Fiberglass Reinforced Plastic (FRP). E4H-CE RO
machines use tape wrapped membrane elements. For more information, refer to
the Spare Parts List (P/N 1233377).
Table 1.3
Membrane Element
Specifications
9
Specification
Outer Cover Material
Typical Ionic Rejection (TDS)
Nominal Permeate Flow Rate
[at 7.6 bar (110 psi)]
Typical Feed Water
Temperature Range
Maximum Temperature Range
Short-Term Cleaning
Temperature
pH Range
Chlorine Tolerance
Active Membrane Area
Average Molecular Weight
Cutoff*
E4H-CE
Tape
98.0 - 99.5%
8.3 m
3
/d (2200 gpd)
10° - 29°C (50° - 85°F)
0° - 40C (32° - 104°F)
< 43°C (110°F)
3.0 - 11.0
< 0.1 ppm
7.9 m
2
(85 ft
2
)
1500 MW*
E8-CE
FRP
98.0 - 99.5%
39.8 m
3
/d (10500 gpd)
10° - 29°C (50° - 85°F)
0° - 40°C (32° - 104°F)
< 43°C (110°F)
3.0 - 11.0
< 0.1 ppm
32.5 m
2
(350 ft
2
)
1500 MW*
* The Molecular Weight (MW) cutoff is based on the pore size of membrane elements and the
nature (size/shape) of the organic molecule.