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vwr.com I Instruction manual VWR® G Water System
1.5 Operation Principles
VWR G water system produces ultrapure water and pure water directly from tap water. Most
particles, ions and organic compounds are removed through the pre-filtration, RO membrane, EDI
module, then the EDI water flows through a UV chamber to be sanitized before going to the
storage tank. When in need of ultrapure (UP) water, EDI water goes through a UV lamp chamber
with a dual-wavelength UV lamp to destroy trace organic pollutants in water, then through a
polishing
cartridge to remove the last trace of ions, then a 0.2 μm final filter to the outlet.
No.
Description
No.
Description
C1
RO Booster Pump
C2
Distribution Pump
I1
Feed Conductivity Sensor
I2
RO Conductivity Sensor
I3
EDI Resistivity Sensor
I4
TOC Sensor
I5
UP Resistivity Sensor
J
Pure Water Tank
N1
254 nm UV Lamp
N2
185 nm UV Lamp
N3
Tank UV Lamp
O1
AC Pack
O2
P Pack
O3
U Pack
O5
T Pack (optional)
O6
RO Pack(s)
P
Pressure Sensor
T
EDI Module
S1
Inlet Filter
S2
Inline Filter
V
Flow Meter
W
Tank Vent Filter
C1
I5
I4
I3
I2
I1
O3
O5
O1
C2
N1
N2
N3
O6
W
T
J
O2
S1
S2
V
Tap water
