PSA Nitrogen Generator 95–99% Purity
An on-site CMS twin-tower PSA nitrogen generator for the general inerting tier: 95–99% N₂ at 1–2000 Nm³/h overall series range; confirm capacity for the selected purity/model, up to outlet pressure up to 0.65 MPa per supplier brochure and a -40°C dew point.
This PSA nitrogen generator produces nitrogen at 95–99% purity on site using carbon molecular sieve (CMS) in a twin-tower pressure swing adsorption system.
Flow ranges from 1 to 2000 Nm³/h with outlet pressure up to 0.65 MPa per the supplier brochure and a dew point of -40°C or lower, and the two adsorber vessels alternate between adsorption and regeneration to give a continuous supply.
This is the entry purity tier: it needs the least feed air per Nm³ of nitrogen and suits duties where simple oxygen displacement is enough rather than a tight oxygen limit.
Typical service covers general purging, tyre inflation, conveyor blanketing, tank inerting and grain storage.
| Parameter | Specification |
| Purity | 95–99% N₂ |
| Flow | 1–2000 Nm³/h overall series range; confirm capacity for the selected purity/model |
| Outlet pressure | up to 0.65 MPa per supplier brochure; confirm selected model |
| Dew point | -40°C or lower |
| Adsorbent | Carbon molecular sieve (CMS) |
| Technology | CMS twin-tower PSA (carbon molecular sieve), continuous on-site supply |
| Feed air | model-specific pressure, dew point ≤-40°C, oil-free |
| Startup time | approximately 15–30 minutes (supplier brochure; model dependent) |
| Control | PLC automatic; optional HMI touch screen |
| Typical duty | General purging, tyre inflation, conveyor blanketing, tank inerting and grain storage |
The PSA nitrogen range is published as a purity and capacity configuration rather than a numbered model table: fix the purity tier first, then the flow, outlet pressure and dew point for the duty.
- Adsorption towers: two adsorber vessels alternate between adsorption and regeneration, so the nitrogen supply is continuous.
- Molecular sieve: carbon molecular sieve (CMS) retains oxygen at pressure while nitrogen passes through as product gas; when a bed approaches saturation it is depressurised and the captured oxygen is vented.
- Air dryer: the package includes an air dryer that brings the compressed-air moisture load down so the feed-air dew point requirement is met before the air reaches the sieve bed.
- Filtration: filtration stages remove oil aerosol and dust carried over from the compressor and receiver, protecting the sieve bed.
- Air receiver: a buffer tank (air receiver) between the compressor and the PSA towers steadies the feed-air supply.
- Control cabinet: PLC automatic control with an optional HMI touch screen; the control cabinet manages the valve cycle and the operating parameters.
- Purity monitoring: an oxygen analyser monitors residual oxygen in the product nitrogen, and its calibration is checked on schedule.
- Feed air: clean compressed air at model-specific pressure with a dew point of -40°C or lower, oil-free.
- General purging: provides nitrogen for purging and displacement of air in vessels, tanks and pipework.
- Tyre inflation: supplies nitrogen for tyre inflation and pressure-maintenance service.
- Conveyor blanketing: blankets conveyor and process areas where oxygen ingress must be reduced.
- Tank inerting: inerts storage tanks to lower the oxygen content of the vapour space.
- Grain storage: supplies nitrogen for grain and agricultural storage protection.
- Packaging and warehousing: supports general packaging and warehouse blanketing duties.
- Confirm the required purity first, because it determines the CMS charge and the nitrogen flow available from a given skid.
- Check the required flow and outlet pressure against the 1 to 2000 Nm³/h and up to 0.65 MPa (confirm selected model) ranges.
- Specify the dew point requirement; the system delivers -40°C or lower.
- Confirm the feed-air supply is oil-free with a dew point of -40°C or lower, as this protects the sieve bed.
- For critical uptime, plan a small liquid-nitrogen backup to cover maintenance windows.
- State the power supply and installation conditions for a complete system selection.
What purity does this PSA nitrogen generator produce?
It produces nitrogen at 95–99% purity using CMS twin-tower pressure swing adsorption, with flow from 1 to 2000 Nm³/h.
What dew point and outlet pressure can be achieved?
The system delivers a dew point of -40°C or lower with an outlet pressure adjustable up to 0.65 MPa per the supplier brochure.
Where is 95–99% nitrogen used?
It is used for general purging, tyre inflation, conveyor blanketing, tank inerting and grain storage.
How does the twin-tower PSA cycle work?
Carbon molecular sieve retains oxygen at pressure while nitrogen passes through; the two towers alternate between adsorption and regeneration so output is continuous.
What feed air does the generator require?
Clean compressed air at model-specific pressure with a dew point of -40°C or lower and oil-free, supplied with filtration and an air receiver.
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How to Choose a 95–99% PSA Nitrogen Generator
Quick answer: Select the lowest purity tier that meets the duty. For 95–99% nitrogen, confirm the flow, outlet pressure and dew point, and check the site can supply clean, oil-free compressed air at model-specific pressure.
When is the 95–99% tier the right choice?
Use this tier where the duty is simple oxygen displacement — purging, tyre inflation, conveyor blanketing, tank inerting or grain storage. It consumes the least feed air per Nm³ of nitrogen, so it is the most economical tier to run.
How much nitrogen can the generator deliver?
The published range is 1–2000 Nm³/h overall series range; confirm capacity for the selected purity/model at 95–99% purity, with outlet pressure adjustable up to 0.65 MPa per the supplier brochure and a dew point of -40°C or lower.
What does the system need from the site?
A compressed-air supply at model-specific pressure, dew point -40°C or lower and oil-free, plus power and installation space. The PSA nitrogen generator guide explains sizing and air quality.
Selection Data to Send Our Engineers
- Required N₂ flow (Nm³/h)
- Required nitrogen purity
- Outlet pressure (MPa)
- Dew point requirement
- Available compressed-air supply and quality
- Operating hours and site conditions
Industry Applications
Explore how this equipment can be applied in related industrial sectors and review application-specific selection guidance.
Technical selection & RFQ
Request a Quote for PSA Nitrogen Generator 95–99% Purity
Looking for a PSA nitrogen generator supplier for an industrial project? Share the operating conditions below so our team can review the duty, recommend a suitable configuration and prepare a quotation. Final model selection and performance should be confirmed against your actual process conditions and the applicable product data.
Information to include in your inquiry
- Required nitrogen purity: Target N₂ purity (%) and any outlet quality requirement
- Nitrogen flow: Required flow rate and whether it is peak or continuous demand
- Operating pressure: Required outlet pressure and downstream pressure losses
- Application & operating profile: Packaging, electronics, laser cutting, chemical process, or other use; operating hours
- Site utilities: Available power supply, compressed-air conditions, ambient temperature and installation space
Not all details are available yet? Send the information you have, your datasheet or a process description. We can identify the missing selection data before confirming a model.