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Gas Generator Systems
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Industrial Gas Purity
Highest purity isn’t always the best choice. For example, 99.999% nitrogen isn’t inherently better than 95% nitrogen— it’s simply purer. The right purity is determined by the application. Heat-intensive processes (e.g., laser cutting or annealing) demand higher purities to prevent oxidation, while many blanketing tasks need only 95–98% to reliably avoid fire and explosion risk.
The key is to avoid over-specifying. On-site gas generators let you produce only the purity you actually need—often at a much lower operating cost—because generating lower purity levels requires less energy.
Why “Highest” Isn’t “Best”
Buying cylinder gas typically locks you into one very high purity level due to cryogenic production and logistics. Many users end up paying for purity their process doesn’t require—without performance benefits.
Right-Sizing with On-Site Generation
Generators tailor purity to each process (and shift), reducing energy use, waste, and cost—while still meeting your quality and safety standards.
Typical Purity by Application (Guidance)
Laser Cutting & Heat Treat
High-purity nitrogen or oxygen helps prevent oxidation at elevated temperatures for clean edges and consistent results.
Blanketing & Inerting
Moderate nitrogen purity (often 95–98%) is sufficient to protect products and reduce explosion risk.
Food & Beverage
Nitrogen/CO₂ mixes at process-appropriate purity support shelf life, carbonation, and controlled atmospheres.
Electronics & Labs
Higher purities are used where contamination can impact yields, instruments, or sensitive components.
Optimize purity to cut energy spend—without compromising product quality or safety.
Design Smarter : 4 More Essentials in Gas Generator System Design
Efficient air systems save costs, ensure clean supply, and extend equipment life. Domnick (Thailand) can help design or upgrade yours.
