chemical and pharmaceutical industries

Gas mixing systems, lean air systems for the chemical and pharmaceutical industries

We manufacture and deliver in particular gas mixing systems and lean air systems or systems for air enrichment for the chemical and pharmaceutical industries:

  • Air enrichment: Increasing the efficiency or throughput of production plants by enriching air with oxygen
  • Air depletion: Lean air generation by mixing air with nitrogen
  • Generation of reaction atmosphere
  • Nitrogen control lines
  • Natural gas conditioning plants
  • Temperature control systems for low temperatures


Feel free to ask us or request your quotation.

Project examples of lean air systems

Standard gas mixers for lean air generation usually have a capacity of 250 or 400 m³/h and are optionally available with or without a buffer tank in an adapted size such as. B. 1,000 or 3,000 liters. The gas mixer can either be installed in a cabinet, on a steel frame for indoor installation or outdoor installation. Versions for installation in a corrosive atmosphere and/or in Ex zone 2 are also well known tasks.
Suitable system controls with an analysis system for the gas mixture are installed in a separate cabinet. Process data, alarm signals and fault messages are usually displayed on the local control panel and transferred to the operator’s process control system.


  • Particularly high accuracy and reproducibility
  • Static or dynamic, fully automated systems with cascade ratio control
  • Control, analysis and documentation of results with tailor-made solutions
  • Connection of the equipment to existing plant control system and / or telemetry
  • High availability incl. remote maintenance
  • Redundant versions: Switching over without pressure peaks
  • Unmatched security: Redundant measurements

… just beyond standards!

References from the chemical and pharmaceutical industries (excerpt)

  • Arkema
  • Actemium
  • BASF (diverse Standorte)
  • Bayer Schering Pharma
  • Böhringer Ingelheim Pharma
  • Bilfinger Industrietechnik
  • Byk Chemie
  • DSM
  • Evonik Degussa
  • Glyco
  • Linde Gas
  • Synthopol Chemie

Blog posts on the topic

Lean air with SIL2 for pigging and inerting
1024 446 Alexander Hanf

Magerluft mit SIL-2 LT again successfully delivers a lean air system. The system can generate 200 Nm³/h of synthetic air from nitrogen and compressed air. Of these, approx. 50 Nm³/h…

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Safe lean-air supply of resin processes with – new article in the Asia Pacific Coatings Journal
1024 199 Alexander Hanf

The article in the February 2021 issue of APCJ describes the possibilities to meet the requirements of lean air system operators for quality, safety and availability. The aim is…

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Lean air gas mixer with SIL 1
Avoiding explosions with atmosphere control
304 499 Alexander Hanf

Explosive atmospheres in vessels are for example created by dust (ground products) or by degassing (production or storage of flammable substances). Covering with pure nitrogen can be undesirable. Either…

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LT GASETECHNIK supplies SO2 gas safety cabinet
945 417 Alexander Hanf

To protect employees from escaping gases that are hazardous to health, SO2gas cylinders must also be stored safely. For this purpose LT GASETECHNIK supplies SO2 gas safety cabinets with integrated…

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