Valves are widely used in all areas of people's livelihood, due to the requirement to adapt to different working conditions, and thus its variety of large quantities. Our valve manufacturing industry is very large, and valve manufacturers thousands all over the country, at present, China has become the world valve production and market demand is one of the largest countries. But China of valve industry most for SMEs, mixed, annual output value Super billion yuan of not to 10 home, even and domestic other mechanical industry compared, regardless of in equipment Shang also is technology Shang also exists is big of gap, real has independent research development high-end products capacity of units rarely, thus in large petrochemical, and nuclear power, and oil and gas long lost pipeline line, major project in the, supporting of valve currently main also is by imports.
Current valve enterprises attach great importance to the development of new products. It should be noted that China's valve industry development to the present day, although the gap with international advanced level, but has gone beyond simply copied absorption stages. Seeking further development of technical approaches in analysis should learn from foreign advanced products at the same time, from a deeper level of valve technology development trends and to conduct a comprehensive analysis and thinking on product development, and strive to develop new products with independent intellectual property rights.