The nitrogen generator uses the principle of Pressure Swing Adsorption (PSA) to continuously generate nitrogen from clean and dry compressed air.

The high-strength aerospace aluminum extruded double-cavity columns are filled with carbon molecular sieve (CMS) and connected through the upper and lower manifolds. This configuration forms a double-bed system, where the double-cavity columns are packed with high-density broken molecular sieve (CMS).

Clean, dry compressed air enters the bottom of the “in-line” bed through the inlet manifold and flows upward through the CMS, where oxygen and other trace gases in the compressed air are preferentially adsorbed. The remaining nitrogen passes through the support bed and exhaust manifold into the buffer tank. A dust filter, mounted at the outlet of the buffer tank, ensures purity before the nitrogen enters the generator for purity monitoring.

After a pre-set time, the control system automatically switches the beds. One bed is always generating nitrogen online, while the other bed undergoes regeneration. During the regeneration process, molecularly collected oxygen is vented to the atmosphere. A small portion of the nitrogen produced is expanded into the regenerating bed to accelerate the regeneration process.