Nitrogen generators from CompAir
Generate your own nitrogen efficiently
With nitrogen generators from CompAir, companies can cover their nitrogen demand entirely themselves – safely, reliably and cost-efficiently. By using existing compressed air systems, nitrogen is produced directly on site – around the clock, in controlled quality and without depending on external suppliers.
Compared with conventional cylinder or liquid supply, CompAir nitrogen generators often pay for themselves in less than 12 months and offer considerable cost advantages in the long term.
Flow rate
1 to 1,150 Nm³/h
Purity
95 to 99.9995%
Operating pressure
up to 16 bar
Operation
24/7
How a nitrogen generator works
A nitrogen generator separates nitrogen from the ambient air, which consists of approx. 78% nitrogen and 21% oxygen. The generators use clean, dry compressed air that is passed through a molecular sieve. This carbon molecular sieve (CMS) adsorbs oxygen and other trace gases, while the nitrogen passes through almost completely.
The result: a continuous flow of high-purity nitrogen gas that can be used directly for industrial processes – without external deliveries or high-pressure cylinders.
The CompAir product series at a glance
CompAir offers a comprehensive range of state-of-the-art nitrogen generators for a wide variety of industrial requirements. The units are available in three versions – Standard, SEP and MultiSEP – covering a broad spectrum of capacity and purity requirements.
With flow rates from 1 to 1,150 Nm³/h and a guaranteed purity of 95% to 99.9995%, the PSA (Pressure Swing Adsorption) generators offer a reliable and economical solution for generating nitrogen directly at the point of use. All systems are designed for continuous operation (24/7) and are therefore ideal for industrial use.
User-friendly, intelligent control
The nitrogen generators are equipped with an intuitive touchscreen control that allows simple operation and full system control. The control has an automatic start/stop function that efficiently adapts operation to actual nitrogen consumption. This means nitrogen is only generated when it is actually needed – saving energy and extending the service life of the system.
Protection of key components
The SEP and MultiSEP series in particular use spring-loaded columns. These protect the sensitive carbon molecular sieve (CMS) from crushing and premature wear. In addition, integrated moisture protection prevents the molecular sieve from being damaged by residual moisture – a decisive factor for the service life and reliability of the generator.
Multi-bank design for maximum scalability
The models in the CNP series (e.g. CN2009P to CN2168P) use a modular multi-bank system that gives you maximum flexibility. When demand in your company grows, additional generators can simply be added – without replacing the existing infrastructure. At the same time, the concept provides redundancy: individual modules can be serviced while operation continues undisturbed.
Technical design with practical benefits
The well-thought-out design of CompAir generators combines maximum performance with a minimal footprint. The modular construction allows flexible integration into existing compressed air systems without the need for extensive structural changes.
Technical design with practical benefits
- High-quality stainless steel piping – robust and corrosion-resistant
- Integrated purity analyser – guarantees consistent gas quality
- Pressure vessels for dynamic loads – for maximum safety
- Intelligent touchscreen operation – with a user-friendly interface
- Remote start/stop relay – for automated system operation
- Remote monitoring & Industry 4.0 compatibility – full control from a distance
- ASSURE warranty – comprehensive warranty on performance and function
- Short payback period – investment often recovered in less than 24 months
- Energy-efficient operation – Ecomode function saves energy at part load
- Max. operating pressure up to 16 bar – suitable for a wide variety of applications
- Mass flow controller – ensures the correct flow rate
- Purity guarantee valve – automatically safeguards gas quality
The smart alternative to conventional gas supply
In many industries, nitrogen is an indispensable operating resource – whether in food packaging, for inerting in the chemical industry or in laser and welding processes in metalworking. A CompAir nitrogen generator makes external deliveries unnecessary and offers a safe, flexible and economical solution.
Your benefits in day-to-day operation
- Greater safety by eliminating gas cylinders or liquid gas tanks
- Lower risk by eliminating transport and storage under high pressure
- Reduced downtime thanks to demand-based supply
- High-purity nitrogen with a steady flow rate and constant pressure
- Compact, modular design – space-saving and easy to integrate
- Very low operating costs after payback
- Proven reliability in continuous industrial use
From compressed air to high-purity nitrogen
In the system shown, the process starts on the left with the air compressor, which draws in ambient air and converts it into compressed air. Right next to it is the air receiver, where the generated compressed air is temporarily stored. In the next step, the compressed air passes through the dryer and filter units, which reliably remove moisture, oil particles and other contaminants – an essential prerequisite for the smooth operation of the downstream nitrogen generators.
On the right of the picture are four of these generators, which separate the nitrogen (N₂) from the treated compressed air. The nitrogen obtained is then collected in the storage tanks next to them until it is fed into the relevant production process as required.
Technical data
| Model | Purity (oxygen / nitrogen) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| O₂ 5,00 % N₂ 95,00 % | O₂ 3,00 % N₂ 97,00 % | O₂ 2,00 % N₂ 98,00 % | O₂ 1,00 % N₂ 99,00 % | O₂ 0,50 % N₂ 99,50 % | O₂ 0,10 % N₂ 99,90 % | O₂ 500 ppm N₂ 99.95% | O₂ 100 ppm N₂ 99.99% | O₂ 50 ppm N₂ 99.995% | O₂ 10 ppm N₂ 99.999% | O₂ 5 ppm N₂ 99.9995% | ||
| Standard m³/min | N2 | 0,22 | 0,19 | 0,16 | 0,12 | 0,10 | 0,08 | 0,07 | 0,05 | 0,04 | 0,03 | 0,02 |
| N4 | 0,44 | 0,38 | 0,31 | 0,24 | 0,21 | 0,16 | 0,14 | 0,10 | 0,08 | 0,06 | 0,04 | |
| N6 | 0,66 | 0,56 | 0,47 | 0,37 | 0,32 | 0,24 | 0,21 | 0,16 | 0,11 | 0,09 | 0,06 | |
| N9 | 0,99 | 0,84 | 0,70 | 0,55 | 0,49 | 0,36 | 0,32 | 0,24 | 0,18 | 0,12 | 0,10 | |
| N12 | 1,31 | 1,12 | 0,93 | 0,73 | 0,65 | 0,48 | 0,42 | 0,31 | 0,23 | 0,17 | 0,12 | |
| N15 | 1,65 | 1,40 | 1,16 | 0,91 | 0,81 | 0,60 | 0,53 | 0,40 | 0,30 | 0,20 | 0,16 | |
| SEP m³/min | N20 | 2,20 | 1,88 | 1,55 | 1,22 | 1,08 | 0,80 | 0,70 | 0,53 | 0,39 | 0,28 | 0,20 |
| N27 | 2,97 | 2,53 | 2,10 | 1,65 | 1,46 | 1,08 | 0,95 | 0,71 | 0,52 | 0,38 | 0,28 | |
| N35 | 3,85 | 3,28 | 2,71 | 2,14 | 1,89 | 1,40 | 1,23 | 0,93 | 0,68 | 0,49 | 0,37 | |
| N50 | 5,50 | 4,69 | 3,88 | 3,06 | 2,70 | 2,00 | 1,76 | 1,32 | 0,97 | 0,70 | 0,52 | |
| N65 | 7,14 | 6,10 | 5,04 | 5,47 | 3,50 | 2,60 | 2,29 | 1,72 | 1,26 | 0,90 | 0,68 | |
| N80 | 8,80 | 7,50 | 6,20 | 4,89 | 4,31 | 3,20 | 2,81 | 2,12 | 1,55 | 1,11 | 0,83 | |
| N100 | 11,00 | 9,38 | 7,76 | 6,11 | 5,40 | 4,00 | 3,52 | 2,65 | 1,94 | 1,39 | 1,04 | |
| N125 | 13,74 | 11,71 | 9,70 | 7,63 | 6,75 | 5,01 | 4,40 | 3,31 | 2,42 | 1,74 | 1,30 | |
| N150 | 16,49 | 14,06 | 11,64 | 9,17 | 8,10 | 6,01 | 5,29 | 3,98 | 2,91 | 2,09 | 1,56 | |
| MultiSEP m³/min | N80T | 17,59 | 15,00 | 12,41 | 9,79 | 8,63 | 6,41 | 5,63 | 4,23 | 3,10 | 2,21 | 1,67 |
| N100T | 21,99 | 18,75 | 15,51 | 12,21 | 10,80 | 8,01 | 7,05 | 5,30 | 3,89 | 2,79 | 2,09 | |
| N125T | 27,49 | 23,43 | 19,40 | 15,27 | 13,50 | 10,01 | 8,81 | 6,63 | 4,85 | 3,49 | 2,60 | |
| N150T | 32,97 | 28,13 | 23,29 | 18,33 | 16,20 | 12,03 | 10,57 | 7,95 | 5,81 | 4,17 | 3,13 | |
| N3080 | 26,39 | 22,50 | 18,61 | 14,67 | 12,95 | 9,61 | 8,45 | 6,37 | 4,65 | 3,33 | 2,50 | |
| N3100 | 32,97 | 28,13 | 23,29 | 18,33 | 16,20 | 12,03 | 10,57 | 7,95 | 5,81 | 4,17 | 3,13 | |
| N3125 | 41,21 | 35,15 | 29,10 | 22,91 | 20,25 | 15,03 | 13,21 | 9,93 | 7,27 | 5,21 | 3,91 | |
| N3150 | 49,47 | 42,19 | 34,91 | 27,50 | 24,30 | 18,03 | 15,85 | 11,93 | 8,73 | 6,25 | 4,69 | |
| N4080 | 35,17 | 30,00 | 24,83 | 19,55 | 17,29 | 12,83 | 11,29 | 8,49 | 6,20 | 4,45 | 3,33 | |
| N4100 | 43,97 | 37,50 | 31,03 | 24,43 | 21,60 | 16,03 | 14,10 | 10,60 | 7,77 | 5,57 | 4,17 | |
| N4125 | 54,65 | 46,89 | 38,80 | 30,55 | 27,00 | 20,05 | 17,61 | 13,25 | 9,70 | 6,95 | 5,21 | |
| N4150 | 65,95 | 56,25 | 46,55 | 36,67 | 32,40 | 24,05 | 21,15 | 15,90 | 11,63 | 8,33 | 6,25 | |
| N5080 | 43,97 | 37,50 | 31,03 | 24,43 | 21,60 | 16,03 | 14,10 | 10,60 | 7,77 | 5,57 | 4,17 | |
| N5100 | 54,95 | 46,89 | 38,80 | 30,55 | 27,00 | 20,05 | 17,61 | 13,25 | 9,70 | 6,95 | 5,21 | |
| N5125 | 68,70 | 58,60 | 48,49 | 38,19 | 33,75 | 25,05 | 22,01 | 16,57 | 12,11 | 8,69 | 6,51 | |
| N5150 | 82,43 | 70,31 | 58,19 | 45,81 | 40,49 | 30,07 | 26,43 | 19,89 | 14,55 | 10,43 | 7,81 | |
Performance at 7 bar (g) inlet pressure. Intake air quality 1.4.1 according to ISO 8573-1:2010.
CN2009P to CN2168P series
| Model | Flow rate¹ in Nm³/h at a purity of | Dimensions (mm) | Weight approx. (kg) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 99.999% (10 ppm) | 99.995% (50 ppm) | 99.99% (100 ppm) | 99.975% (250 ppm) | 99.95% (500 ppm) | 99,9 % (0,10 %) | 99,5 % (0,50 %) | 99 % (1 %) | 98 % (2 %) | 97 % (3 %) | 96 % (4 %) | 95 % (5 %) | A (height) | B (width) | C (depth) | ||
| CN2009P | 0,9 | 1,7 | 2,0 | 2,5 | 3,0 | 3,6 | 5,2 | 5,8 | 7,3 | 8,3 | 9,5 | 10,3 | 1223 | 400 | 605 | 161 |
| CN2017P | 1,8 | 3,4 | 4,0 | 5,0 | 6,0 | 7,2 | 10,4 | 11,6 | 14,5 | 16,7 | 19,0 | 20,6 | 1223 | 400 | 773 | 188 |
| CN2026P | 2,7 | 5,1 | 6,0 | 7,5 | 9,0 | 10,8 | 15,6 | 17,3 | 21,8 | 25,0 | 28,5 | 30,9 | 1223 | 400 | 941 | 241 |
| CN2032P | 5,1 | 7,2 | 8,9 | 10,0 | 11,4 | 13,2 | 18,9 | 21,0 | 26,4 | 30,3 | 34,5 | 37,5 | 1823 | 400 | 773 | 253 |
| CN2047P | 7,7 | 10,8 | 12,6 | 15,0 | 17,1 | 19,8 | 28,4 | 31,5 | 39,6 | 45,5 | 51,8 | 56,3 | 1823 | 400 | 941 | 336 |
| CN2063P | 10,2 | 14,4 | 16,8 | 20,0 | 22,8 | 26,4 | 37,8 | 42,0 | 52,8 | 60,6 | 69,0 | 75,0 | 1823 | 400 | 1109 | 418 |
| CN2095P | 15,3 | 21,6 | 25,2 | 30,0 | 34,2 | 39,6 | 56,7 | 63,0 | 79,2 | 90,9 | 103,5 | 112,5 | 1823 | 400 | 1445 | 640 |
| CN2126P | 20,4 | 28,8 | 33,6 | 40,0 | 45,6 | 52,8 | 75,6 | 84,0 | 105,6 | 121,2 | 138,0 | 150,0 | 1823 | 400 | 1781 | 748 |
| CN2145P | 23,5 | 33,1 | 38,6 | 46,0 | 52,4 | 60,7 | 86,9 | 96,6 | 121,4 | 139,4 | 158,7 | 172,5 | 1823 | 400 | 2117 | 913 |
| CN2168P | 27,2 | 38,4 | 44,9 | 53,3 | 60,9 | 70,5 | 100,9 | 112,1 | 141,0 | 161,8 | 184,2 | 200,3 | 1823 | 400 | 2453 | 1079 |
| Air factor | 6,8 | 5,1 | 4,6 | 3,6 | 3,5 | 3,4 | 2,8 | 2,7 | 2,4 | 2,2 | 2,1 | 2,0 | ||||
| Design operating pressure | 6 to 12 bar (g)² |
|---|---|
| Operating temperature | 5 to 50 °C |
| Recommended operating temperature | 5 to 25 °C |
| Max. particle size at inlet | 0,1 µm |
| Max. oil content at inlet | 0.01 ppm⁴ |
| Recommended pressure dew point at inlet | −40 °C³ |
| Supply voltage | 100 to 240 VAC (50 or 60 Hz) |
| Power consumption | 72 W |
| Inlet pressure (bar g) | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|---|
| Correction factor⁵ | 0,88 | 1,00 | 1,10 | 1,20 | 1,30 | 1,40 | 1,50 |
| Inlet temperature (°C) | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 |
|---|---|---|---|---|---|---|---|---|---|---|
| Correction factor⁵ | 0,8 | 0,9 | 0,94 | 1,00 | 1,00 | 0,98 | 0,95 | 0,90 | 0,85 | 0,72 |
¹ At 7 bar (g) inlet pressure and 20 to 25 °C inlet temperature; the correction factors apply for other conditions. ² 16 bar (g) on request. ³ Only for low-purity applications. ⁴ Including oil vapour. ⁵ Guide values; CompAir confirms the design for each application. Subject to technical changes.
Frequently asked questions
How does a CompAir nitrogen generator work?
Clean, dry compressed air flows through a carbon molecular sieve (CMS). This adsorbs oxygen and other trace gases, while the nitrogen passes through almost completely.
What flow rates and purities are possible?
The PSA generators deliver 1 to 1,150 Nm³/h with a guaranteed purity of 95% to 99.9995%.
Which versions are available?
The generators are available in three versions: Standard, SEP and MultiSEP. They therefore cover a broad spectrum of capacity and purity requirements.
What do I need for operation?
A compressed air supply with a compressor, air receiver, dryer and filters. The treatment removes moisture, oil particles and contaminants before the air enters the generator.
Which applications is on-site nitrogen suitable for?
For example for food packaging, inerting in the chemical industry or laser and welding processes in metalworking.
What are the drawbacks of cylinder or liquid supply?
With your own generator, deliveries, transport and storage under high pressure are no longer needed. This increases safety and makes you independent of external suppliers.
Does the generator save energy at low consumption?
Yes. The automatic start/stop function only generates nitrogen when needed, and the Ecomode function saves energy at part load.
Can the system grow with demand?
Yes. The CNP series models use a modular multi-bank system to which further generators can be added. Individual modules can be serviced while operation continues.
How is gas quality ensured?
An integrated purity analyser monitors gas quality, and a purity guarantee valve safeguards it automatically. A mass flow controller ensures the correct flow rate.
Who can help me choose the right generator?
We can. We clarify your requirements for quantity and purity and find the right model. Call us or write to us.
Which nitrogen generator suits your application?
The Standard, SEP and MultiSEP models cover a broad spectrum of capacity and purity requirements. Let us advise you to find the best model for your needs.