On-site industrial gas generation
BERG configures PSA nitrogen, membrane nitrogen and PSA oxygen systems around the purity, flow, pressure and operating profile of your process. The generator is engineered together with compressed-air treatment, buffer storage and downstream equipment. BERG manufactures, integrates and executes the complete project. Compare the routes below, then send the operating data needed for a technical proposal.
Choose your gas
Nitrogen excludes oxygen and moisture from a process. Oxygen increases the available oxygen concentration for oxidation, combustion and biological treatment.
For inerting, blanketing, modified-atmosphere packaging, laser cutting, electronics manufacturing and other processes that need a controlled residual oxygen level.
For wastewater treatment, glass production, oxy-fuel processes, medical oxygen installations and other applications requiring controlled oxygen generation on site.
Technology selection
The correct technology depends on the gas, required purity, flow pattern, pressure and lifecycle cost. Higher purity is not automatically a better specification.
Covers the NITROBERG® purity range from 97% to 99.999%. It is the preferred route when the process needs low residual oxygen, stable purity and engineered capacity.
Selection boundary: above roughly 99.5–99.9%, PSA becomes the technically and economically preferred option.
View PSA nitrogen systems
Typically suitable up to about 99.5% for inerting and blanketing. The compact separation modules suit duties where moderate purity and a simple continuous process are the priority.
Selection boundary: it stops making sense when the higher purity drives excessive compressed-air demand compared with PSA.
View membrane nitrogen systems
Produces oxygen at 90, 93, 94 or 95% purity with automatic control available up to 2,000 Nm³/h. The system is configured around product-gas demand and installation requirements.
Selection boundary: it is not the route for a process specification above the verified 95% portfolio purity.
View PSA oxygen systemsNitrogen engineering guide
Nitrogen purity directly affects the upstream compressor. Moving from 99.5% to 99.999% nearly doubles the compressed air required per Nm³ of nitrogen, so specifying purity above the process requirement increases compressor size and lifecycle cost.
| N₂ purity | Compressed-air factor | Engineering implication |
|---|---|---|
| 97% | 2.3 | Lowest verified air factor |
| 98% | 2.3 | Same verified factor as 97% |
| 99% | 2.6 | Moderate increase in air demand |
| 99.5% | 2.9 | Key membrane/PSA selection region |
| 99.9% | 3.4 | PSA preference becomes clearer |
| 99.99% | 4.6 | Compressor sizing rises materially |
| 99.995% | 5.2 | High-purity PSA duty |
| 99.999% | 6.4 | Highest verified portfolio purity |
System configurations
Choose a gas-specific skid for a compact indoor package or a containerised plant for a protected, pre-integrated outdoor or remote installation.
A coordinated nitrogen skid groups the NITROBERG® generator, air treatment, vessels, valves, instrumentation and control interfaces. Choose it when installation time and a defined nitrogen-system interface are priorities.
The OXYBERG® generator is integrated with the required treatment, storage, valves, instrumentation and control interfaces. Choose it for a pre-engineered oxygen package with reduced work at the installation site.
The oxygen-generation chain is installed inside an engineered enclosure for outdoor or remote projects. Choose it when no suitable plant room is available or the O₂ package must arrive pre-integrated.
The nitrogen-generation chain is installed inside an engineered enclosure for outdoor or remote projects. Choose it when the N₂ system needs a protected, transportable and pre-integrated installation format.
The complete gas chain
Gas output depends on the quality, pressure and stability of the compressed-air supply. BERG coordinates the complete physical sequence so the generator, vessels, controls and downstream application operate as one system.
With correct compressed-air treatment, the adsorbent operates reliably for 15–20 years.
Model comparison
The tables provide a first technical shortlist. Final sizing still depends on purity, flow peaks, operating profile, pressure and installation conditions.
Capacity at 99.99% purity · Nm³/h
| Model | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | 1200 | 1300 | 1400 | 1500 | 1600 | 1700 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Capacity | 2.2 | 4.0 | 6.2 | 8.8 | 13.6 | 18.5 | 24.2 | 29.9 | 42.2 | 59.0 | 82.7 | 101.7 | 119.1 |
Portfolio: 97–99.999% purity · residual O₂ from 3% down to 10 ppm · 1.2–1,141.3 Nm³/h capacity · 7.7–2,625 Nm³/h compressed-air demand · air factor 2.3–6.4 · product vessel 90–6,000 l · air vessel 90–10,000 l.
Capacity at 93% purity · Nm³/h
| Model | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | 1200 | 1300 | 1400 | 1500 | 1600 | 1700 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Capacity | 1.7 | 2.4 | 4.2 | 5.5 | 8.2 | 11.1 | 12.8 | 17.4 | 22.1 | 31.4 | 41.6 | 51.3 | 62.1 |
Portfolio purity levels: 90 / 93 / 94 / 95% · automatic control up to 2,000 Nm³/h.
Industries
Each application page connects the gas specification to its process, installation and operating priorities.
Sizing checklist
A useful quotation starts with the operating requirement, not only a nominal flow. Include peak demand and the conditions at the intended installation location.
BERG applies DIN, IEC and UVV as standard; ASME, ATEX, GL and BV are available on agreement. Medical oxygen installations follow ISO 13485:2016 and Directive 93/42/EEC. BERG has 20+ years of experience, 1,000+ installed systems and ISO 9001:2015 certification by TÜV Rheinland.
Technical FAQ
Specify the process limit that matters. The NITROBERG® range of 97–99.999% nitrogen corresponds to residual oxygen from 3% down to 10 ppm. Avoid selecting a higher purity unless the process requires it.
Membrane nitrogen is typically suitable up to about 99.5% for inerting and blanketing. Above roughly 99.5–99.9%, PSA generally becomes the technically and economically preferred option because membrane air demand rises as purity increases.
The verified compressed-air factor rises from 2.9 at 99.5% nitrogen to 6.4 at 99.999%. The higher-purity point therefore needs substantially more compressed air for each Nm³ of nitrogen produced.
Yes. BERG can integrate the compressor, air treatment, air buffer vessel, gas generator, product gas vessel and application interface or booster as a skid or containerised plant.
With correct compressed-air treatment, the adsorbent operates reliably for 15–20 years. Air quality and operating conditions must therefore be included in the system evaluation.
Send the required purity, flow including peaks, outlet pressure, operating profile, available compressed air, installation conditions and any applicable code beyond DIN, VDI/VDE, IEC and UVV.
