Gas mixers for medical applications

Ambient air contains impure particles such as dust, bacteria, viruses and pollutants. In medical applications very high requirements with regard to the purity of the used air are standard. WITT-synthetic air gas mixers are the solution for the reliable production of so called “Synthetic Air”, a mixture of pure oxygen and nitrogen in almost atmospheric composition.

WITT-Synthetic air gas mixers are established internationally in numerous stationary installations and are characterised by high safety standard, intuitive handling via touch screen, low investment and maintenance cost , easy integration and low power consumption.

Of course, all gas mixers fulfill highest quality requirements concerning construction, material and manufacturing. Two independently working gas analysers guarantee the right gas mixture of oxygen and nitrogen. Two series connected solenoid valves make sure that no gas escapes even if one valve fails.

The solution is certified according to European Medical Devices Directive 93/42/EEC.

Gas Mixer MED-MG

Stationary Gas Mixer specially designed for the generation of synthetic air for medical applications

quality gas mixer from the world market leader
medical device class IIb, CE marked according to Directive 93/42/EEC*
simple to operate via touchscreen
pre-set gas blend
gas mixture withdrawal possible from 0 up to 675 Nm³/h
highest supply safety by redundant construction of all relevant safety components
system only works with sufficient buffer volume

Data sheet Downloads
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Information

GAS MIXER MED-MG for synthetic air

MED-MG 50-2ME GB A
MED-MG 100-2ME GB A
MED-MG 200-2ME GB A
MED-MG 500-2ME GB A

Stationary gas mixing system specifically for the generation of synthetic medicinal air (according to EN ISO 7396-1). Medical device class IIb, CE marked according to directive 93/42/EEC*.

(*In accordance with the transitional provisions of Regulation (EU) 2017/745, Article 120, as amended by Regulation (EU) 2023/607, the validity of the certification according to 93/42/EEC including the corresponding CE marking is extended until 31 December 2028 at the latest. If required, we can send you a letter of confirmation from the responsible notified body.)

Capacity range from 0 to approx. 675 Nm3/h.
For the exact pressure and flow capacity ratios, please refer to the data sheet.

Easy operation:

simple to operate via touchscreen
pre-set gas blend (adjustable inside gas mixer)
gas mixture withdrawal possible from zero to the maximum flow capacity

High process reliability:

highest integrity to supply safety by independent construction of all relevant safety components
2 independent integrated Oxygen Analysers for permanent control and documentation of the gas mixtures
self-monitoring of analysers additional monitoring via alarm module
monitoring of the gas supply with pressure transmitter
inlet pressures that are too low trigger an optical alarm and shut down the system
lockable transparent door and back panel for protection of settings
independent of pressure fluctuations in the gas supply
intermittent gas mixture withdrawal possible
USB connection for file transfer
Ethernet connection for network integration
triggering for solenoid valves provided by customer

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