Linked Autoclavable Laboratory Fermenter

Features R'ALF Plus comprises R'ALF autoclavable laboratory fermenters linked together with centralized water, air and power supplies but with individual controls. In the example described on the next tow pages, four R'ALF units have been connected. This configuration, set up in a small space and at a minimum of effort, permits four fermentations to run simultaneously in identical vessels but under different process condition   Standard bacterial fermentation Standard cell culture Options Glass vessels,vessel capacity 3.7 L, 5.0 L, 6.7 L 3.7 L, 5.0 L, 6.7 L 0.5 L, 1.0 L, 2.0 L Heating Double glass jacket, double bottom, individual temperature control Double glass jacket, double bottom, individual temperature control - Drive Top drive, 100 - 1500 rpm, with face seal Top drive, 50 - 700 rpm, with face seal Airlift, magnetic drive, additional impellers Stirrer Two six-blade (radial-flow) turbines, adjustable-height baffle cage One four-blade (axial-flow) turbines, adjustable-height baffle cage Pitched-blade turbine, draft tube Gas conditioning Inlet air system rated for 300L/h with pressure reduction, variable-area flowmeter, with needle valve and flow-control valve (continuous), sterile filter Three-channel gas mixing station for air, O2 and CO2, 30L/h and 9L/h respectively, each with pressure reduction, variable-area flowmeter, with needle valve and flow-control valve (continuous), sterile filter Two-to four-channel gas mixing station, extra inlet air system with fi;ter for surface aeration, gas flow measurement and control Aeration Ring aerator Sintered-metal sparger Aeration tube, bubble-free aeration Exhaust Sterile filter, reflux cooler Sterile filter, reflux cooler No reflux cooler Ports 12xDn12(3.7 L); 14xDn12 plus 2xDN19(5.0L and 6.7L) 12xDn12(3.7 L); 14xDn12 plus 2xDN19(5.0L and 6.7L) - Pumps Four peristaltic pumps, one of them adjustable-speed Three peristaltic pumps, one of them adjustable-speed Additional peristaltic pumps Metering Feed lines for acid, base, antifoam agent and medium Feed lines for base, reserve and medium Other feed lines (connectors with hose) Harvesting Harvest tube, height-adjustable for level control, with hose Harvest tube with hose Additional fixed or height-adjustable harvest tube Inoculation Inoculum feed line Inoculum feed line Flask with sterile filter, hose, peristaltic pump Control loops Temperature, speed, pH, oxygen, foam control Temperature, speed, pH, oxygen, level Additional level control Perfusion - - Rotary filter on stirrer shaft