November 9, 2016: DSI valves made by JEV, gate valves: 4”-300, 4”-900, 4”-1500, 8”-1500, 12”-300, 12”900, 20”-300; Globe valves: : 4”-300, 4”-900, 12”-900, have been tested and certified by UNITED VALVE, a third party test lab in USA. The test lasted one and half year, from May 22, 2015 to November 9,2016
