Valve is one of the key equipments in fluid control system. At present, the main applications of valve include petroleum and gas, power, chemical engineering, water supply and sewage treatment, paper making and metallurgy. Among that, oil & gas, power and chemical industry are the most important applications of valve. According to the prediction from McIlvaine, the market forecaster, the demand of industrial valve will reach 100 billion dollars. Energy demand in developing countries is the main factor to promote industrial valve market to develop. It is estimated that from 2015 to 2017, the growth rate of industrial valve market size will maintain at about 7%, much higher than the growth rate of global industrial valve industry.