In mid-June, entrusted by the National Energy Administration, China National Petroleum Corporation’s Science and Technology Management Department and the China National Machinery Industry Federation’s major technical equipment office jointly organized and held the “Industrial Testing and Appraisal Meeting for High Pressure, Large Diameter, Welded Ball Valves for Long-distance Natural Gas Transmission Pipelines†in Beijing. . The China Petroleum Materials Purchase Center and the Pipeline Construction Project Manager jointly signed contracts for the purchase of large-diameter, high-pressure, fully welded ball valves for long-distance pipelines with Chengdu Chenggao Valve Co., Ltd., Shanghai Neles Valve Co., Ltd. and Zhejiang Wuzhou Valve Co., Ltd., respectively. This has become a major measure for PetroChina to support the localization of major equipment.
Experts attending the conference heard a report from the Industrial Gasoline Large-diameter Fully-welded Ball Valve Test Report of China Petroleum West-East Gas Pipeline Co., Ltd. as an experimental support unit, reviewing industrial test reports and other related technical documents, and agreed that the provided technical data is complete. , Complete, in line with industrial test appraisal and acceptance requirements; large-caliber fully-welded ball valve industrial test technology program and test methods in line with domestic and foreign technical standards, to meet the actual production requirements, test technology program is reasonable and innovative.
High-pressure, large-diameter all-welded ball valves are one of the key equipments for long-distance natural gas pipelines. Natural gas long-distance pipelines run through deserts, swamps, mountains, rivers, etc. The geological conditions are complex and the environmental conditions are harsh. To ensure the safe and reliable operation of large energy arteries, valves are required. With higher reliability, tightness and strength, and a service life of more than 30 years, high requirements have been put forward in terms of design, materials, and manufacturing. At present, in the construction of long-distance pipelines for natural gas in China, high-pressure fully welded ball valves with a diameter of more than 40 inches mainly depend on imports, which is not only expensive but also difficult for after-sales service. The products developed by the three units at the same time through the identification and acceptance, will greatly speed up the long-distance natural gas pipeline high-pressure large diameter welded ball valve localization process.
In addition, in order to meet the needs of domestic industrial testing, the performance test of 30 domestically produced products was completed. At the same time, the completed test device has practical significance for the performance testing and quality supervision of localized products in the future.
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