... (adjustable)2. Working Principle: DA series oxygen generators are based on the PSA principles using high quality zeolite molecular sieve as ... and desorption of nitrogen and other impurities. Usually there are two adsorption Towers in the system, one is used ... , papermaking, ozone producing, aquaculture, aerospace, welding and so on. ModelCapacity(Nm3/hr)Air consumption (Nm3/min)Inlet (mm)Outlet ...