Yu machine valve developed successfully 56 inch all welded large diameter long distance pipeline ball valve

Yuji Valve Co., Ltd. recently developed a 56-900LB all-welded ball valve. It officially debuted at the 7th China · Shanghai International Fluid Machinery Exhibition and Valve Expo on October 15th, adding new highlights to the exhibition. This is the world. The largest all-welded large-diameter pipeline ball valve is independently developed by Yuji Valve Co., Ltd. The valve weighs 40 tons and is also a domestically produced product. The original large-diameter welded ball valve relies on imports and currently breaks the monopoly of foreign countries. Localized.

According to the Deputy General Manager of Yuji Valve Co., Ltd. Chen Zhiming: The 56-inch all-welded ball valve developed by Jade Valve is also made in China. The gas-liquid linkage actuator provided by Chengdu Zhonghao Fluid Control Equipment Co., Ltd. is suitable for temperature. 46+100 ° C, the main medium is natural gas. This large-diameter all-welded ball valve is tailor-made for the long-distance pipeline of China Petroleum. In order to develop this giant, the engineers and technicians of Jade Valve Co., Ltd. have done in welding, process, processing, assembly and testing. Overcoming the difficulties, overcoming various difficulties, innovating the overall structural design technology based on the actual load analysis and calculation of the pipeline ball valve, the design technology of the anti-scratch valve seat sealing structure, the low residual stress satisfying the main weld requirements of the valve, and the special automatic welding technology at low temperature. For the first time, the fracture mechanics theory was successfully applied to the safety evaluation of CTOD welds without heat treatment in the main weld of the valve body. A new high-pressure large-diameter all-welded ball valve suitable for the buried installation of long-distance natural gas pipelines was developed. Relevant technical indicators have reached the international similarity. The level of the product.

It shows that domestic ball valve design and manufacturing enterprises have matured the manufacturing technology of all-welded ball valve sealing and heat-free welding, and have the necessary manufacturing, testing and inspection equipment. The new welding ball valve of the long-distance pipeline of Fuxin Project has fully realized the domestic design and manufacture of domestic products. The valve design is guaranteed to last for more than 30 years, and the relevant performance (operation and sealing) can meet the requirements of working conditions for a long time.

Jade Machine Valve Co., Ltd. is one of the three domestic companies that have entered the domestic specialization of China National Petroleum Long-distance Pipeline Valves. At present, Jade Valve Co., Ltd. provides a large number of large-diameter all-welded ball valves for the localization of long-distance pipeline valves, and is also a national long-distance pipeline. The localization of major valve equipment has contributed.