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FlowCon 2/3/4 Gas mixing

FlowCon 2/3/4 Gas mixing
Technical Data

Stand-alone gas mixing device

The Kuhner FlowCon has been developed for the R&D environment and the initial production steps in bioreactors with disposable bags. Whether stabilizing the pH in cell cultivations with CO2,or reducing oxygen concentration for microaerophilic organisms the FlowCon gas mixer meets all user needs.  The FlowCon can be used as a stand-alone device, or can be integrated with the Kuhner equipment family (incubator shakers, disposable bioreactors, …). 

Performance characteristics

  • Mixing up to four gases
  • (also gas mixtures can be connected)
  • Selectable flow rate: 0-1 [sL/min], 0-20 [sL/min]
  • Kuhner Insight Software control
  • Integration in Kuhner shakers
  • Integrated pressure sensor
5 year warranty

5 year warranty

CO2 control

CO2 control

O2 control




Further information


a) Stirred tank bioreactor
b) Other disposable systems
c) Orbital Shaken bioreactor



Up to four mass flow controllers ensure high accuracy and reproducibility of the gas mixture. The number of mass flow controllers can be adapted to individual requirements (FlowCon 2/3/4). An integrated pressure sensor prevents overpressure in the connected bioreactor, by reducing the gas flow in the first step and shutting off the gas flow in the second step. Step limits can be freely programmed by the user. Integrated gas filters and back pressure valves ensure a long interference free operating time of the FlowCon.

 The Kuhner Insight software provides data logging, programming and controlling.

FlowCon 2/3/4

Number of mass flow controllers

1, 2, 3 or 4


225x158x430 (WxDxH) [mm]

Ambient conditions

5-40 [°C],
max. 85 [% rH]


up to 4 gases, push connector 6 [mm] 

+ air
+ oxygen
+ nitrogen
+ carbon dioxide
(also gas mixtures can be connected)

Input pressure

1-2 bar


1, (tube fitting for tube ID 13 [mm])

Flow rates

0-1 [sL/min]
0-2 [sL/min]
0-20 [sL/min]


±1.5% from the end value

Stand-alone operation



Kuhner Insight (optional)
data logging,

Interface, standard


Interface, optional

USB, Ethernet, digital, analogue

Power supply

90-230V, 50-60Hz

Pressure sensor

integrated, 0-400 [mbar], programmable, prevents overpressure in the connected vessel

Air filter

integrated, prevents blocking of the mass flow controllers

Back pressure valve

integrated, prevents reflux into the mass flow controllers

Technical data subject to change


The following flyers provide information about the machines and function-specific solutions.

Kuhner shakers are suitable for the cultivation of microbial, plant, human and animal cell cultures. Find more information about the different application areas and suitable product recommendations for optimal cultivation here.

Stem cells
Cell culture
Plant cells & algae


Adolf Kühner AG (Headquarters)

Dinkelbergstrasse 1

CH-4127 Birsfelden (Basel)



We support our customers in implementation, maintenance and repair of all Kuhner products – efficiently and competently. 

GMP compliant production of shakers and bioreactors

For Kuhner, the quality and durability of their shakers and bioreactors have always been the topics with the highest priority. On this account, Kuhner products have also proven their worth worldwide under GMP requirements. Documentation, development and production along the full life cycle of our products are continuously enhanced to match the requirements of 21 CFR and GAMP 5.

Read more


The world's most reliable shaking machines built in-house in Switzerland.

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