【Major Industrial Equipment in the Chemical Industry】320 – China’s first set of \"large-diameter tee bellows control valves\" has been successfully put into use

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This post was last edited by Desert Fish on 2022-6-6 at 08:24. Comply with the Work Safety Law! Take on the role of the primary responsible person! ---------------------------------------------- The past decade has seen significant development in China’s chemical industry, with the emergence of many new processes, products, and equipment. China’s chemical processing equipment has also experienced substantial progress, which has contributed to the rapid growth of the petrochemical sector. Here, we have compiled a list of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and increased use of domestic equipment. Everyone is welcome to share their thoughts and experiences; let’s cheer for Made in China and support the development 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 (Source: Huahai Chuanliu – Haichuan Chemical Forum Website) Summary post on the series 【Major Industrial Equipment in the Chemical Industry】 https://bbs.hcbbs.com/thread-3312079-1-1.html (Source: Huahai Chuanliu – Haichuan Chemical Forum Website) -------------------------------------------------- The first phase of Yunnan Nengtou Silicon Materials Technology Development Co., Ltd.’s project, with an annual production capacity of 400,000 tons of silicone products, including 200,000 tons per year from the second phase, has successfully started operations; as of March 2022, it has been running safely and stably for 5 months. The key large-diameter bellows control valves used in the critical equipment of this project were custom-made to high standards by Chongqing Chuanyi Control Valve Co., Ltd. Since this product is primarily used for regulating the temperature of silicone heat transfer oils, it requires a large diameter – with a nominal diameter of DN450 and a design pressure of PN25 – and there are extremely strict requirements regarding both external and internal leaks; to date, there have been no successful applications of this type in China. Yunnan Nengtou originally planned to purchase imported brands, but gave up due to various factors such as the pandemic, and decided to have it customized by Chuanyi Control Valve Company. Upon receiving the order, Chuanyi Control Valve Company promptly organized its R&D team to carry out meticulous design and innovative efforts. Through repeated tests and validations, the company overcame the challenges associated with the manufacturing process of long-stroke bellows, and successfully resolved the issue of sealing technology for large-diameter applications with high pressure differences and low leakage rates. The product is up to 4 meters tall and weighs nearly 4 tons; 8 units were assembled successfully at once and delivered on time. The product meets the international standard ISO15848 Class A requirements for micro-leakage, and it succeeded in its first trial run on site, receiving high praise from users. Based on the feedback from users on site, the valve is currently operating stably with excellent control performance, reaching an advanced level comparable to that of international similar products.