Valves, Overview - GE AKTA avant User Manual

3 Standard instrument modules

3.3 Valves, overview

3.3

Valves, overview

Introduction
The valves of the ÄKTA avant system allow flexibility in the liquid flow path.
This section provides an overview of the valves included in a standard equipped ÄKTA
avant system.
General design and function of
rotary valves
All valves on the ÄKTA avant instrument, except for the Quaternary valve, are rotary
valves. The motorized rotary valve consists of a valve connection block with a number
of defined bores with channels to the inlet and outlet ports of the valve. The rotary disc,
mounted on the motor, has a number of defined channels. The pattern of channels of
the Rotary disc together with the pattern and location of the ports of the valve connection
block, define the flow path and function of each type of valve. When the rotary disc turns,
the flow path in the valve changes.
62 ÄKTA avant User Manual 29035184 AE