【Major Chemical Equipment】339 – Double-seal special nickel-based alloy dedicated stop valve

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This post was last edited by Desert Fish on 2022-6-9 at 17:16. Comply with the Work Safety Law! Take on the role of the primary responsible person! ---------------------------------------------- The past decade has been a period of rapid development in China’s chemical industry, with the emergence of many new processes, products, and equipment. The development of chemical processing equipment in our country has also been significant, and it has contributed to the rapid progress of the petrochemical industry. Here, we have compiled some of the achievements and breakthroughs made by domestic equipment manufacturers in terms of larger-scale equipment production and local manufacturing. We invite everyone to share, discuss, and exchange ideas, to cheer for Made in China and to support the advancement of chemical processing equipment! ------------------------------------------------------ Your participation is the greatest support for the forum. Click on the blue link to access it: The 【HaiChuan Equipment Guessing Game】 series is being updated continuously in 2022; all forum members are welcome to participate actively! https://bbs.hcbbs.com/thread-2079686-1-1.html Summary post for the 【Major Industrial Equipment in the Chemical Industry】 series. https://bbs.hcbbs.com/thread-3312079-1-1.html -------------------------------------------------- ☆☆☆☆ Let’s celebrate China’s achievements in equipment manufacturing and support the development of China’s chemical industry; feel free to provide comments, discussions, and shares on this series. ☆☆☆☆ On December 4, 2019, the double-sealing nickel-based special alloy globe valve project developed by Lanzhou Shangya Valve Co., Ltd. won the third prize in the 12th Gansu Provincial Workers’ Outstanding Technological Innovation Awards. The valves used in high-temperature pressure vessels produced by Hubei Gurun are specialized stop valves made of nickel-based alloys, capable of providing two-way sealing under difficult operating conditions, with a pressure rating of PN63 and diameters ranging from DN32 to DN50. Frequent use reduces their service life, which significantly impacts production processes and leads to substantial economic losses. The special materials used in the manufacture of these valves make processing more difficult and require higher precision levels; yet various attempts to overcome these issues have been unsuccessful. The Langao valve ultimately took on this arduous task. It was developed and designed taking into account its characteristics of high temperature, corrosive powder-like medium, and frequent operation, with the goal of achieving the best possible quality and performance. After 3 months of work involving research and development, component procurement, machining, and testing, this technical challenge was finally overcome. The two-way sealed special nickel-based alloy globe valves developed by Langao Valve Company, thanks to their technological innovation, advanced design, and mature manufacturing and forging processes, fully meet the technical requirements for such valves. They address the issue of short service life and poor sealing performance in harsh conditions involving high temperatures, corrosion, and powder environments, thereby helping companies save costs and improve production efficiency. It has served as a guide in the development of valves for such operating conditions, providing strong technical support and assurance for the development of similar products.