Agilent Technologies 1200 series - Introduction to the Preparative Pump

8 Agilent 1200 Preparative Pump User Manual
1 Introduction to the Preparative Pump
Introduction to the Preparative Pump
Introduction to the Preparative Pump
The preparative pump is a cam driven pump, with fixed stroke and two
parallel pistons, each with (identical ball and seat) inlet and outlet valve. Each
of the two pump pistons is capable of delivering a maximum of 50 ml/min flow
at up to 400 bar pressure.
The two cams have overlapping delivery cycles. Compression losses are
calculated and smooth delivery is ensured through variation of the motor
speed over the pump cycle.
The pistons are guided through two seals each. The gap between those seals is
connected to capillary fittings, this way seal wash is not only an option, but
integral part of every pump. A peristaltic pump, to automate seal wash, is also
part of the system.
Figure 1 Overview of the Preparative Pump
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