TTCL Successfully Completes DN500 Barrel-Style Plugging Project, Showcasing Hot Tapping Expertise under 1.6MPa High-Pressure Conditions
2026-03-27
TTCL Pipeline Technology (Jiangxi) Co., Ltd. recently announced the successful completion of a DN500 natural gas pipeline barrel-style single plugging operation. The project was executed under stringent conditions with a pipeline design pressure of 1.6 MPa and an operating pressure of 0.8 MPa. This achievement marks another significant breakthrough for the company in non-stop transmission construction for high-pressure, large-diameter pipelines, fully validating its hot tapping capabilities and engineering service proficiency.
The core challenge of this project lay in performing a safe and precise hot tapping and plugging operation on a DN500 large-diameter pipeline while maintaining a stable operating pressure of 0.8 MPa and ensuring the continuous transmission of flammable natural gas. Facing the risks associated with high pressure and the hazardous nature of the medium, the Teda Changlin technical team leveraged its extensive expertise to formulate a meticulous construction plan and deployed its advanced barrel-style plugging equipment.
During the operation, the Teda Changlin team strictly adhered to international safety standards. Through precise calculations and real-time monitoring, they successfully completed the pipeline hot tapping and plugging. The entire process achieved the established goals of "no transmission stoppage, zero leakage, and no accidents." This not only effectively guaranteed normal gas supply for downstream users but also averted significant economic losses and social impact that would have resulted from a service interruption.
As a national high-tech enterprise, Teda Changlin has long been dedicated to the R&D and application of non-stop transmission hot tapping and plugging technologies. This successful implementation on a pipeline with a 1.6 MPa design pressure serves as powerful proof of the capability of its barrel-style plugging process in high-pressure applications. This technology forms a reliable seal inside the pipeline using a specialized plugging head, eliminating the need to cut the main pipe, which greatly reduces damage to the pipeline body and construction risks.
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Taitat Changlin Pipeline Technology (Jiangxi) Co., Ltd.
For over 40 years, we have provided safe, efficient and proven solutions for pressure pipeline systems around the world, ensuring the safe flow of energy.
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