Abstract: Super float valve（SFV）tray is a new type of trays developed by China University of Petroleum. SFV tray was designed with many innovation and optimization for valve structures combining the advantages of guide rectangular valve tray and micro V-grid fixed valve. The hydraulic and mass transfer performances of SFV were investigated with an air-water-oxygen system in a stainless steel column of 1200 mm in comparison with the traditional F1 tray. Experimental results showed that SFV has pressure drop lowered by 10%—20%，weeping rate lowered by 20%—30%，entrainment lowered by 20% and mass transfer efficiency increased by 10%—20% as compared with F1. The industrial application showed that the high performance SFV tray could be used to the design and restoration of columns.