The dual piston pump has stepping motor drive like the analytical version.
Each pump has a range of flow rates from 0.01 to 50 ml/minute and may be used isocratically or with others, to create a high pressure gradient. This makes for smooth, easy and reproducible transitions in scaling up from analytical to semi–preparative work. The pump head is biocompatible.
The semi-preparative pump may be used with third party systems.