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Installation and commissioning of Asia's largest high vacuum electric flapper valve produced by our company
2020/11/17

On February 27th, the largest domestic Sichuan 2000 cubic meter stainless steel high vacuum spherical tank and one 5000 cubic meter vacuum spherical tank project, which were constructed by China First Metallurgical Group Steel Structure Company, were successfully installed. . It is understood that the flapper valve weighs 32 tons, which is currently the largest high vacuum electric flapper valve in Asia and is extremely difficult to install.

   This project includes the production and installation of one domestic largest 2000 cubic meter stainless steel high vacuum spherical tank and one 5000 cubic meter vacuum spherical tank and the supporting vacuum piping system. The steel structure company of China First Metallurgical Group is responsible for the construction. The flapper valve installed this time is a valve that connects the spherical tank and the pipeline. When the spherical tank is subjected to a vacuum test, it plays a role in regulating the air source and requires extremely high sealing performance. The valve is 8 meters high, 3.3 meters wide, 1.95 meters thick, and weighs 32 tons. Such heavy and large equipment must be transferred from the workshop to the construction site for installation. The Sichuan Spherical Tank Installation Project Department of China First Metallurgical Group Steel Structure Company draws on the experience of the first phase of the project and formulated a special hoisting plan, using the "round steel rolling method", that is, introducing two large cranes into the workshop, and then using two steel plates, one fixed , A row of round steel with a diameter of 40 mm is spread on it; another steel plate is placed on the round steel, and a row of round steel is sandwiched between the two steel plates and starts to slide. The flapper valve is moved out of the workshop on the steel plate and transferred to the installation site , Installed in place.

   The successful installation of the 32-ton high-vacuum flapper valve has accumulated valuable experience for the subsequent installation of the 28-ton single-sealed high-vacuum flapper valve, which once again reflects the top strength of China First Metallurgical Group in the field of pressure vessel manufacturing and installation.

 



  The picture shows the installation site of Asia's largest high vacuum electric flapper valve produced by our company


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