（1）Technique Principle
Pressure swing adsorption (PSA) carry out gas separation, due to different adsorption feature of different gas. Two-bed, three-bed and four-bed can be used to separate different polar molecules to give pure helium, neon, nitrogen and so on. This equipment use complicated four-bed PSA process to produce up to 99.99% purity helium.
（2）Product Features
uHigh purification recovery：up to 90% purification recovery rate;
uHigh helium purity：>5% raw helium concentration could produce up to 99.99% pure helium;
uoptimized operation interface, monitoring parameters, automatic start/stop system, remote alarm system。
（3）Product Performance
（4）Application
Industrial exhaust gas recovery (optical fiber/semiconductor/air conditioner leakage test),airship helium recovery, research/test exhaust gas
