【Ten Years of Rapid Development in Chemical Equipment】The first batch of gate valves for China’s largest-diameter delayed coking units was successfully delivered between 1995 and 2021

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Ten years of rapid development in chemical processing equipment – praise for China’s prosperity and strength. This is just a starting point; more participation from everyone will make things even more lively. HaiChuan becomes even better with your involvement; we welcome everyone to take part more actively in the forum discussions. Everyone should pay attention to safety and know how to handle emergencies. ********************************************* On the morning of June 12, 2021, the production workshop of Lanzhou High-Pressure Valve Co., Ltd. was bustling with activity. After over 180 days and nights of hard work and relentless efforts, the gate valves used in China’s largest 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 of the largest diameter used in delayed coking units in China, 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 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 the manufacturing of special valves designed for ultra-high temperatures, ultra-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 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.