The system uses a high-pressure piston-recirculation pump to circulate product through the filter module of choice. The speed of the recirculation pump can be adjusted to suit the particular filtration module and the product. The triple-piston design combined with high-pressure flexibles minimises pressure pulsation. The operator can use their own feed vessel or this can be specified. Accidental system over-pressure is avoided by a bursting disc downstream of the recirculation pump. The retentate back-pressure valve enables pressures up to 50 bar to be achieved.
Features:
Variable retentate flow rate in order to change filtration cross-flow velocity
Retentate electronic flowmeter measurement
Retentate and permeate back pressure valves
Capable of microfiltration, ultrafiltration, nanofiltration and revese osmosis operations
Maximum filtration pressure of 50 bar
Clean-in-place capability
Backpulsing option (suitable for certain modules)
Mass balance option for permeate flow rate measurement
All parameters are data logged
Pressure sensors on the retentate inlet and outlet of the filtration module and on the permeate line.