Bucher Vaslin has become the leader in cross flow filtration with innovations that allow winemakers to process juice, wine, and lees without the need for diatomaceous earth.
Cross flow filtration uses microporous membranes to process wine in a closed loop. The wine that passes through the membrane due to a pressure gradient is referred to as the "permeate". The particles and wine that are retained upstream of the membrane are referred to as the "retentate". This constant flow helps prevent particles from settling on the surface of the membrane. In addition, a back flush system also helps to prevent
clogging and maintain flow rates throughout the filtration.
The critical component to the Bucher Cross Flow Filter is the .2 micron polyethersulfone (PES) membrane made specifically for wine filtration. This hydrophilic membrane
allows for brilliantly filtered wine or juice, while limiting the retention of desirable polyphenols and polysaccharides. The Bucher system also operates at a very low pressure (maximum 1.2 bar), so the quality of the wine is maintained. Frequent 1-2 second back flushes help to maintain the flow rate at this low pressure. As a result,
The Bucher Cross Flow Filter is particularly popular with high end wineries.
For any questions, information, or to setup a demonstration on the Bucher Vaslin Cross Flow system please contact us at sales@gusmerenterprises.com or visit us online www.gusmerenterprises.com