The BTAX centrifuge is specially designed for biotechnical processes such as cell harvesting, broth clarification and separation of cell debris. The centrifuge has a very high separation efficiency and can be installed in a closed system.     All BTAX models are gastight. The complete system can be supplied in an explosion-protected version when required.   Actual throughput is in the range of 0-12 m3/h depending on paring disc size and design, as well as on the amount and type of solids in the feed, temperature, viscosity, required degree of clarification etc. Max hydraulic capacity of disc stack is much higher.   During separation, solids collect in pockets recessed in the bowl wall which avoids undesirable solids build-up, and minimizes disturbances during solids ejection. The pneumatically operated solids-ejecting system ensures fast and efficient discharges resulting in a clean bowl. Axial discharge channels lead from the solids pockets to valves, which are held closed by a spring loaded valve slide. To eject solids from the bowl during operation the slide is lowered momentarily by a very short injection of compressed air or gas through the hollow bowl spindle. This opens the valves and the solids are ejected.