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Can HDPE pipes be used as gas pipes?
2021-06-30 17:24:17
High-density polyethylene (HDPE) natural gas pipelines have many properties and are widely used in the field of gas transportation. It will solve the corrosion and joint leakage problems of steel pipes and cast iron pipes, thereby ensuring the safe operation of the gas pipeline network system.

The PE material selected for the PE gas pipe is an inert material, which can withstand the erosion of a variety of chemical media. The pipe wall has low friction coefficient, small flow resistance, and strong conveying capacity. It adopts electric melting connection, the interface strength is higher than the pipe body, and the high toughness PE fracture The elongation is generally more than 500%, and it has good seismic performance, resistance to slow crack growth (SCG), rapid crack growth (RCP), flexibility and scratch resistance.

With the rapid progress of polymer materials science and technology, the deepening of the development and utilization of plastic pipes, and the continuous improvement of production processes, plastic pipes have fully demonstrated their performance. High-density polyethylene (HDPE) natural gas pipeline is a new generation of gas pipeline. It is an extruded pipe made of polyethylene as the main raw material. Compared with traditional metal pipes, it has corrosion resistance and is lighter in weight. , The density is only 1/8 of the steel; the service life is long, up to 50 years; the strength is good, the toughness is good, and it can withstand changes in the formation without breaking; the advantages of simple construction, etc., are new products for the replacement of gas pipelines.
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