The challenge when producing bacteria, fungi or cell cultures lies in the exact adherence to the respective general requirements. Above all, the precise regulation of gas quantities in fermentation processes must be adapted to the needs of the constantly increasing cultures. Bürkert Fluid Control Systems has launched mass flow controllers (MFCs) featuring a wide adjustment range, excellent repeat accuracy and documentation functions for reproducible processes. The devices comply with the approvals USP Class VI, FDA, 3.1 certificate and EC 1935.
The mass flow controllers are suitable for use in research laboratories right up to pilot plants. A total of four different gases can be calibrated. With just one device, the user is able to control the common fermenter gases such as air, oxygen, nitrogen or carbon dioxide exactly according to the needs of the respective cultures. The MFCs Type 8741 and 8745 (image) cover standard flow ranges for nitrogen from 0.010 to 160 lN/min and from 20 to 2500 lN/min. The wetted parts are made of stainless steel to prevent ferment contamination. The mass flow controllers therefore comply with the approvals USP Class VI, FDA, 3.1 certificate and EC 1935.
Thanks to direct measuring sensors, the MFCs with high repeat accuracy are also suitable for the smallest gas quantities. In combination with the integrated, direct-acting proportional valve, they enable very dynamic control. Process data such as gas pressure and gas flow rate can be transmitted variably in conjunction with the Bürkert EDIP (Efficient Device Integration Platform). The MFCs also support Industrial Ethernet, PROFINET, EtherNet/IP, EtherCAT, Modbus TCP or CANopen as well as Profibus-DP via a gateway. In addition, Bürkert also offers ready-assembled compact system solutions. The pre-configured complete systems, consisting of MFCs and valves, can be easily integrated into existing plants as customer-specific gas mixing units. The unit is already factory tested for tightness, pressure and correct electrical function, thereby saving valuable installation time and simplifying engineering tasks.