Application case of pipeline expansion joint in Changsha Metro Project

The official website of Shanghai Songjiang shock absorber Group Co., Ltd. introduces to you: Shanghai Songjiang Shock Absorber Group Co., Ltd. won the bid for the Changsha subway project in 2015. This project uses Shanghai Songjiang pipeline expansion joint products. We are a Shanghai pipeline expansion joint manufacturer. We provide pipeline expansion joint products for subway projects all year round. If you want to know more about subway projects Click on case inquiry.

Introduction to Changsha Metro

Changsha Metro is an urban rail transit serving Changsha City, Hunan Province, China, including subway systems, maglev systems, etc. Its first line was opened on April 29, 2014, and its maglev express line is the first medium and low-speed maglev line opened in China with completely independent intellectual property rights.

As of June 2020, there are 6 Changsha rail transit lines: Changsha Rail Transit Line 1, Changsha Rail Transit Line 2, Changsha Rail Transit Line 3, Changsha Rail Transit Line 4, Changsha Rail Transit Line 5, The Changsha Maglev Express Line covers the entire main urban area of ​​Changsha and Changsha County, with a total of 114 stations, including 12 transfer stations, with an operating mileage of 161.05 kilometers.

As of December 2021, there are 6 Changsha Rail Transit lines under construction: Changsha Rail Transit Line 6, Changsha-Zhuzhou-Tanzhou Intercity Rail Transit West Ring Phase I, Changsha Rail Transit Line 1 North Extension Phase I, and Changsha Rail Transit 2 The second phase of the west extension of the line, the east extension of the Changsha Maglev Express Line, and the first phase of Changsha Rail Transit Line 7.

In the whole year of 2021, the Changsha Rail Transit subway network will send a total of 585 million passengers, with an average daily passenger volume of 1.6 million. As of June 16, 2021, the highest daily passenger volume of Changsha Rail Transit was 2,851,200 passengers on May 1, 2021 (excluding maglev express data).

Pipeline expansion joint in Changsha Metro Project

Performance characteristics of pipeline expansion joint:

1. Small size, light weight, good elasticity, convenient installation and maintenance
2. It can produce lateral, axial and angular displacement during installation, which is not limited by the lack of center of the pipeline and the non parallelism of the flange
3. When working, it can reduce the noise transmitted by the structure and has strong vibration absorption ability

Related links: Single Sphere Pipeline Expansion Joint

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