Ultra (ultra) critical thermal power units have significant energy saving and environmental improvement effect, it is low coal consumption, good environmental performance, high technology content, is the development direction of thermal power equipment. Currently in developed countries they have been widely studied and applied, but in China due to the late start, the high-end valves in this type of unit is basically dependent on imports, according to statistics, a 1,000MW super (ultra) critical unit has more than 500 high-end valves, only 10% from the domestic procurement.

For such a situation, in the National Energy Board to promote, in April last year, 17 domestic valve manufacturing enterprises to take up the banner of localization, to the high-end thermal power valves. Wujiang Dongwu Machinery Co., Ltd. undertook the localization of super (ultra) critical thermal power unit superheater import and export safety valves. 2012 January 7-8, the National Energy Administration and the China Valve Association held a product identification meeting in Dalian, DWMC's super (ultra) critical thermal power unit safety valves were recognized by the experts at the meeting and passed the appraisal. 2012 September 2, held in Beijing, the On September 2, 2012, DWMC was awarded an honorary certificate by the National Energy Administration at the conference on localization of key valves for ultra (super) critical thermal power units. At the same time, DWMC became one of the manufacturers who started the localization of the third type of key valves for ultra (supercritical) thermal power units.