DN300 Encapsulation Project for Nanchang Gas Successfully Completed and Highly Commended by the Client

The DN300 encapsulation (four-stopple) project for Nanchang Gas was successfully completed between November 17 and 26, 2025, marking another milestone in our company’s pipeline intervention capabilities. The project passed final acceptance and received unanimous praise from the client for its safety, efficiency, and high-quality execution.

This operation involved performing a DN300 four-stopple procedure on an in-service pipeline—an operation that requires strict safety control, precise engineering calculations, and advanced technical expertise. Despite challenges such as limited site space and the high operating pressure of the gas pipeline, the project team ensured smooth progress through detailed planning, strict adherence to standards, and professional on-site execution.

Throughout the process, all critical steps were carried out in compliance with industry regulations and client requirements. The team ensured full control of operational risks, ultimately completing the intervention safely and efficiently. The client spoke highly of our technical performance, emergency handling ability, and project management efficiency, expressing confidence in future cooperation.

The successful completion of this project once again demonstrates our company’s strong capabilities in hot tapping and line-stopping operations within the urban gas sector, and lays a solid foundation for undertaking more complex and higher-level intervention projects in the future.