Safe and efficient lean air systems in potentially explosive atmospheres
The generation of lean air – a gaseous mixture of nitrogen and air with a reduced oxygen content – is crucial for safety and product quality in many industrial processes. Especially in the production of synthetic resins, lean air significantly reduces the risk of explosive atmospheres.
LT GASETECHNIK offers customized gas mixing systems that enable a reliable, precise and documented oxygen concentration – with safety and monitoring technology at the highest level.
Technological solution: gas mixing systems with SIL components
The systems used combine nitrogen and air or pure oxygen, controlled by mass flow-controlled mixing systems. The central components are
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SIL gas analyzer: Continuously monitors the oxygen concentration with high accuracy and documents compliance with the safety limits.
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SIL differential pressure monitoring: Ensures stable pressure ratios of the gases for constant mixing ratios.
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SIL monitoring and shutdown: Switches the system off automatically if the permissible O₂ concentration is exceeded. The design is carried out according to SIL standards by the weyer group.
Practical examples
In synthetic resin production, a lean air system with SIL monitoring not only sustainably improved process reliability, but also product quality. In another application, the system ensured a constant lower limit for the oxygen content in solvent boilers – a crucial safety factor.
Experience & reliability
Lean air systems from LT GASETECHNIK have been in use worldwide since 1996 – with volume flows of 10 to 900 Nm³/h. The company has supplied almost 50 SIL-monitored applications to date and has over a dozen systems in maintenance.
Advantages at a glance
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High process reliability: thanks to automatic shutdown in the event of deviations
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Consistent product quality: precise and documented oxygen control
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Reliability & availability: thanks to proven technology, redundant systems and customized solutions
Conclusion
Lean air systems with SIL-compliant technology are essential for safe and efficient processes in potentially explosive production areas. LT GASETECHNIK supplies customized solutions – tailored to your requirements in terms of pressure, volume flow, installation location and safety level.
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As soon as you need a reliable and safe lean air supply for your production plant, you should opt for a customized solution . Contact us with your specific data such as inlet pressures, volume flow, outlet pressures, installation location and safety requirements to receive a quote for your individual lean air system: mail@lt-gasetechnik.com