Principle Of Operation - Agilent Technologies Infinity II SFC Binary 1260 User Manual

Principle of Operation

The binary pump is based on a two-channel, dual-piston in-series design
which comprises all essential functions that a solvent delivery system has to
fulfill. Metering of solvent and delivery to the high-pressure side are
performed by two pump assemblies which can generate pressure up to
600 bar.
Each channel comprises a pump assembly including pump drive, pump head,
and outlet valve. The two channels are fed into cross connector which is
connected to a damping unit and a mixer. A pressure sensor monitors the
pump pressure. A purge valve with integrated PTFE frit is fitted to the Pump
Head B outlet for convenient priming of the modifier channel.
Seal wash pump
Pump head A
For pump specifications, see
1260 SFC Binary Pump
SSV
Inlet valve
to autosampler
Mixer
Damper with
Pressure sensor
Outlet valve
"Performance Specifications"
Introduction
Instrument and Operation
Inlet valve
Pump head B
Purge valve
on page 28.
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