【Major Chemical Equipment】337 – The largest domestic gate valve of DN750 size for delayed coking units

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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, marked by 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 localization. We invite everyone to share their insights and discuss these topics together, 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 【Guess the Haichuan Equipment】 series is being updated continuously in 2022; all forum members are welcome to take part actively! https://bbs.hcbbs.com/thread-2079686-1-1.html Summary post of the 【Major Chemical Equipment in China】 series https://bbs.hcbbs.com/thread-3312079-1-1.html -------------------------------------------------- ☆☆☆☆ Let’s cheer for 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 the morning of June 12, 2021, the production workshop of Lanzhou High-Pressure Valve Co., Ltd. was bustling with activity. After more than 180 days and nights of relentless effort, the gate valves used in China’s largest diameter delayed coking unit passed the inspection by the client, and the first batch of products was delivered successfully. It is understood that the valve products delivered this time are electric cut-off gate valves for Guangdong Petrochemical’s 3 million tons per year delayed coking unit; there are 8 units of each of the CL300 type in DN600 and DN750 sizes, for a total of 16 units. As the gate valve used in China’s largest-diameter delayed coking units, the DN750 model can withstand a maximum pressure difference of 0.514 MPa and operate at temperatures up to 460°C. It serves as a key control device for shutting off the oil and gas at the top of the coke tower in coking units, and thus it imposes very strict requirements on product design, technical development, and manufacturing processes. Lanzhou High-Pressure Valve Co., Ltd., thanks to its strong technical capabilities, solid brand reputation, and excellent market development skills, successfully won the bid for the electric cut-off gate valve project for Guangdong Petrochemical’s 3 million tons per year delayed coking unit. It received full recognition from CNPC East China Design Institute, China National Petroleum Construction Company, and the owner of Guangdong Petrochemical, thereby demonstrating its comprehensive expertise in manufacturing special valves for extreme temperatures, high pressures, high-alloy materials, and large diameters. Since winning the bid for this project, the company has attached great importance to it and established a project task force. Guided by customer needs, it brought together the top professionals from departments such as production, process engineering, technology, and quality control. By upholding the craftsman spirit of striving for excellence and perseverance, the team worked together to overcome difficulties, and successfully resolved technical issues such as those related to DN750 gas seals.