The worlds first special valve developed by Aerospace 11 Institute has super strong corrosion resistance

Recently, a special valve developed by the 11th Institute of China Aerospace Science and Technology Corporation for Shenhua Group has passed the acceptance test, becoming a valve in the world that can be used under the extreme working condition of 160 ° C in strong acid media, with technology reaching international standards.
This valve is applied to the industrial system for extracting alumina from fly ash. The system requires the use of a large number of valves to control acidic fluid media, requiring valves to have high resistance to high temperature hydrochloric acid corrosion and erosion, which is a global problem that has always constrained the development of the acid based alumina extraction industrial production system.
In recent years, 11 institutes of the Sixth Institute have focused on the field of valves and achieved several advanced technological breakthroughs. In the manned missions of Tiangong 2 and Shenzhou 11, the Beijing 11 Institute of China Aerospace Science and Technology Corporation's Sixth Institute undertook the development of key products such as pumps and valves for thermal and environmental control subsystems, achieving the driving, control, and regulation functions of thermal and environmental control fluid circuits.
Through technical research, the 11th Institute of the Sixth Academy of Engineering has conquered key technologies such as high-temperature pinch valves for the aluminum oxide extraction process system from fly ash. It is understood that pinch valves have certain advantages in conveying solids and liquids containing abrasive and corrosive substances such as particles, powders, fibers, and slurries. They have broad application prospects in mining and metal industries, mineral processing industries, pulp and paper industries, chemical processing industries, energy industries, and other fields. The successful development of this valve will lay a solid foundation for addressing the control valve requirements of various specifications and uses in the industrial system of extracting alumina from fly ash, as well as industrial production.