Slurry Pumps and Packing Stations

A pump is necessary to pack, unpack, and provide buffer from the slurry preparation tank to the column. The ideal pump provides constant pressure and flow rate at low shear stress. Because of shear stress reasons rotating parts have to be avoided, therefore diaphragm pumps are preferred. To dampen the pulsing characteristic of a diaphragm pump, typically 2 or 3 pistons are used. 

Suppliers typically provide movable skids integrating the pump and a valve arrangement. To avoid turbulence and shear stress true bore valves such as ball and butterfly valves shall be used. 

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