... ,The application of complete low-pressure flow arrives at a nitrogen purity of 99.9999% above without the oxygen content 2 ... sets of different projects,such as O2 plant,N2 plant,PSA system, The large and medium air separating plants designed and ... system (DCS), completely low-pressure and energy-saving. Air Separation Unit, 100 Nm3 Oxygen, 250 Nm3 Nitrogen