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Table 2.2
E-Series
Feed Water Requirements
* American Standard for Testing Materials
2.6 Transporting Pure Water (Permeate) to Point-of-Use
The pure water, or permeate, is in an aggressive state and should only be transport-
ed from the machine to the point-of-use in food grade flexible nylon, stainless steel
(SS) tubing, or polyvinyl chloride (PVC) material for the inlet, permeate, and concen-
trate piping sizes. Refer to Connections (Table 2.1) for inlet, permeate, and concen-
trate piping sizes.
W
ARNING
: MACHINE DAMAGE MAY OCCUR IF PERMEATE BACK PRESSURE
EXCEEDS 60 PSIG (4.1 BARG) DURING OPERATION.
3
Temperature
Inlet Pressure
Chlorine
(continuous feed)
Operating pH
Silt Density
Index (SDI)
Typical: 50° - 85°F (10° - 29°C)
Limits: 33° - 104°F (0.16° - 40°C)
Minimum: 30 psig (2.1 barg)
Maximum: 60 psig (4.1 barg)
0 parts per million (ppm)
5.5 - 8.5
Less than or equal to 5 to minimize
membrane element fouling and
extend cleaning intervals.
Refer to ASTM* standard D4189.