GE AKTApure, User Manual, Page: 56 / 522

2.4.8 Column valves
Function of the Column valves
The Column valves are used to connect columns to the system, and to direct the flow onto the column.
The Column valves available for ÄKTA pure and their functions are described in the table below.
Function Label in
ÄKTA pure 150 ÄKTA pure 25
Connects columns to the system and allows the user
to choose column, flow direction through the column,
or to bypass the columns. V9H-C V9-C
Up to five columns can be connected to the valve.
Connects columns to the system and allows the user
to choose flow direction through the column, or to
bypass the column. V9H-Cs V9-Cs
One column can be connected to the valve.
The inlet and outlet ports of Column valves V9-C and V9H-C have built in pressure sensors that measures
the actual pressure over the column. For further information on the pressure sensors, see Function of
pressure monitors integrated in Column valves V9-C or V9H-C, on page 69.
Column valves V9-Cs and V9H-Cs lack built-in pressure sensors. See Section 5.5 Connect a column, on
page 173 for information on how to set pressure alarms that protects the column when no Column
valve V9-C or V9H-C is installed.
Location and illustration of Column valves
The illustration below shows the recommended location of the Column valves and a detailed view of
the valves. In this example the valves are labeled V9-Cs and V9-C.
1 2
Function Part
Column valve V9-Cs or V9H-Cs (no integrated pressure sensors) 1
56 ÄKTA pure User Manual 29119969 AB
2 The ÄKTA pure instrument
2.4 Instrument modules
2.4.8 Column valves