Warmly congratulate our company on passing the appraisal of the new large-diameter insulated joint
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2017-12-25
On October 31, 2017, China Machinery Industry Federation organized a new product appraisal meeting for "JYGA-120 type PN 12MPa DN1400 new large diameter insulated joint" completed by Xi 'an Pump Valve General Factory Co., Ltd. The appraisal meeting invited 13 representatives of well-known experts in the industry, including Liang Jiang, director of the pipeline department of China National Petroleum Exploration and Development Corporation, Jing Yiping, director of the pipeline construction project department of China National Petroleum Corporation, Song Yinli, secretary general of the valve branch of China General Machinery Association, and Professor Yang Zheng of Xi 'an Jiaotong University.
At the meeting, the appraisal committee with Director Liang Jiang as its chairman listened to the technical summary, novelty search report, user use report and other reports of the development project team, and consulted relevant technical documents. After inquiry and discussion, the appraisal committee unanimously agreed to pass the appraisal.
The appraisal committee believes that the "JYGA-120 type PN 12MPa DN1400 new large diameter insulated joint" completed by Xi 'an pump and valve general factory co., ltd. is the first low temperature resistant (-45 ℃) insulated joint product in China, which successfully solves the technical problems of insulation, sealing and strength integration. Its main innovation points are as follows:
1, the establishment of a large-diameter insulation joint optimization analysis of the overall model, the use of clamp calculation design and butt weld located outside the new structure of the fixed sleeve, improve the insulation joint limit carrying capacity and product safety and reliability, formed a product design and manufacturing proprietary technology;
2, developed a large diameter, low temperature (-45 ℃) fluorine rubber seals, to meet the requirements of the product in the low temperature environment;
3, developed for PN 12MPa DN1400 insulation joint assembly, testing special equipment, to meet the requirements of mass production.
In August 2016, our company provided PN 10MPa DN1000 insulated joints of similar structure to Tarim Oilfield, and this batch of products were delivered to users on schedule. From December 2016 to April 2017, our company provided PN 10MPa DN600 and PN 10MPa DN650 insulated joints of similar structure for Jin-Zheng line project in three batches, and the pipeline has been put into use one after another. In March 2017, our company has provided PN 12MPa DN1200 insulated joints of similar structure for the third line of west-east gas transmission project, and all performances fully meet the requirements of the technical agreement and new product standards.
The appraisal committee believes that the successful development of the product provides strong technical support for the localization of PN 12MPa DN1400 insulated joints, and its overall technology has reached the international leading level and agreed to pass the appraisal. It is suggested to speed up the popularization and application.
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