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We provider specializing in the design, engineering, and manufacture of nitrogen generation, oxygen generation，gas separation solutions to Metallurgical Heat Treatment,Oil & Gas, Chemical, Environmental protection,Pharmaceutical , Food packaging and so on.
Jan 22nd,2026
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We continues to focus on providing our customers with cost-saving technologies ,low maintenance in nitrogen/oxygen and other gas separation solutions.
The selection of a nitrogen generator should be based on four core dimensions: gas demand, purity requirements, working conditions, and cost budget. It is necessary to make a comprehensive judgment by combining the characteristics of different nitrogen generation technologies. The following are the systematic selection steps and key points, which are applicable to common scenarios such as industrial production, laboratories, and food preservation:
1)Nitrogen purity
This is the primary criterion for selection, and the purity requirements vary greatly depending on the application scenario:
Application scenario Purity requirement (N₂) Important notes
Food preservation (nitrogen-filled packaging) 99.0% - 99.5% Prevent oxidation and deterioration, can be combined with deoxygenation devices
Blowing of chemical pipelines, general protective gas 99.5% - 99.9% Satisfy general inert environment requirements
Packaging of electronic components, laser cutting 99.99% - 99.999% High-purity nitrogen is required to reduce the impact of impurities on the product
Precision experiments in laboratories Over 99.999% Requires purification devices to control impurities such as oxygen and water
2)Nitrogen gas flow rate
It is necessary to determine the maximum hourly gas consumption (Nm³/h) and the average gas consumption, while reserving a margin of 10% to 20% to cope with peak gas usage.
For continuous gas usage scenarios (such as chemical production): Select the equipment based on the maximum flow rate;
For intermittent gas usage scenarios (such as food packaging): A gas storage tank can be used in combination to reduce the equipment selection specification and save costs.
3)Work Pressure
Clearly define the pressure requirements at the gas outlet (in MPa). The pressure at the nitrogen generator outlet should match that of the terminal equipment, without the need for additional pressure boosting or reduction.
Common working pressure: 0.3 - 0.8 MPa (for food and electronics industries);
High-pressure demand scenarios: You can choose a nitrogen generator with a pressure boosting module, or configure a nitrogen pressure booster separately.
