Hubei City Gas Pipe Network Construction | PE100-RC Gas Pipe, Special for Directional Drilling

Hubei gas pipeline network trenchless construction demand upgrade

In recent years, Hubei has accelerated the pace of urban gas pipeline network renewal and transformation, with dense pipelines and large traffic flow in the old city. Open-cut construction can easily affect the normal operation of the city. The trenchless technology of directional drilling has become the mainstream technology of gas pipeline network laying in the main urban area by virtue of its advantages of not excavating the road surface, not destroying the environment, and short construction period. It also puts forward higher requirements for the performance of gas pipes used together.

Core advantages of PE100-RC gas pipe for directional drilling

During the construction of directional drilling, the pipe needs to be dragged over a long distance, which is easy to be scratched by sand and gravel and soil layers. The ordinary PE gas pipe has insufficient anti-scratch and anti-crack growth performance, which is easy to leave potential safety hazards. The PE100-RC gas pipe is a pipe specially developed for the trenchless process. It has excellent anti-slow crack growth performance and anti-scratch performance. Even if there are slight scratches during the towing process, it will not crack. At the same time, it is resistant to acid and alkali corrosion and has stable pressure bearing performance. It meets the long-term use requirements of urban gas transportation. The service life can reach more than 50 years.

PE100-RC gas pipe selection and construction points

In the selection stage, the corresponding specifications of the pipe should be selected according to the gas transmission pressure, laying length and pipe diameter requirements of the project, and the performance test report of the pipe should be checked in advance whether it meets the industry standard requirements. During the construction stage, the tugging speed of the pipe should be controlled, and the tensile force value should not exceed the allowable stress range of the pipe. After the hot melt welding of the interface is completed, the air tightness test should be done one by one. After the construction is completed, the segmented pressure test should be carried out according to the specifications. After confirming that there is no hidden danger of leakage, it can be put into use, which can effectively reduce the operation and maintenance