KM-FLOW, the latest release from German gas system specialists, WITT Gasetechnik promises new solutions to the food industry. The device, promoted the first of its kind, offers digital mass flow controlling for packaging applications that use a protective atmosphere.

Depending on the model, the KM-FLOW mixes two or three gases for all types of packaging machines, whether vacuum, thermoforming, pillow bags or manually-sealed compartments. The digital mass flow controllers also assume the function of the proportional valves and pressure regulators that are so far found almost uniformly across all standard mixing systems in the international food industry. According to Witt the digital mass flow measuring instruments are a major step technologically for the user, but a smaller one for the German owned manufacturers.


“We typically use this technology for supplying burners in the glass industry”, confirmed Martin Bender. “No other manufacturer in the food industry can demonstrate such practical experience as WITT. The KM-FLOW is also certified according to ISO 22000 for food safety.” The Sales Manager consequently takes a relaxed stance towards the expected imitators.

As a particular benefit for the user, Bender cites the ease of operation offered by the touch screen. Freely programmable gas mixtures can now be selected at the touch of a button or by barcode reader, for example. The digital data-bus also makes evaluation of the measuring data easier. When it comes to technical precision and reliability during metering and retaining the selected mixing ratio, the MFC technology is currently state of the art. A high level above the requirements for packaging purposes is also ensured with the conventional WITT measuring technology, stated Bender.


MFC devices are particularly suited to users aiming for a fully-automatic inert gas packaging process with permanent monitoring and fault correction, attested WITT. In combination with an analysis instrument that continually measures the gas concentration during the packacking process, the KM-FLOW can also adjust the gas ratio and gas mixture volume. The result: “This efficient packaging workflow can be ideally realised with MFC. The optimised gas consumption helps to reduce costs and minimise the uncontrolled escape of CO2 protecting employees”, concluded Bender.