Hubei PE gas pipe | Hot melt connection zero leakage, natural gas safe transmission pipe

[Adapted to the scene of gas transmission in Hubei]

Hubei is located in a subtropical monsoon climate zone, with high humidity throughout the year and high soil pH in some hilly areas. Traditional metal gas pipelines are prone to corrosion and leakage problems. With its excellent acid and alkali resistance and low temperature impact resistance, PE gas pipes are suitable for a variety of scenarios such as plain pipe network laying and hilly area buried laying. It is currently one of the mainstream pipes for urban natural gas transportation in Hubei, and can cover all levels of use needs such as backbone pipe network, community support network and home connection.

[Hot melt connection process to build a zero-leakage defense line]

The core connection method of the PE gas pipe is hot melt docking. During construction, the connecting end faces of the pipes and fittings are heated to a molten state, and after applying a stable pressure, they are completely integrated. The molecular structure of the connection part is consistent with the pipe body, and there is no joint gap. This can effectively avoid the risk of aging leakage after long-term use of traditional rubber ring seals. Under the conditions of standard construction, zero leakage of natural gas can be achieved, which greatly reduces the safety hazard of later operation and maintenance.

[Core precautions for type selection and construction]

PE gas pipe selection needs to strictly match the gas transmission pressure requirements, give priority to products that meet national industry standards, and select pipes with corresponding wall thickness grades according to the laying scene. Before construction, stains and burrs at the pipe port need to be cleaned, and the heating temperature, pressure and cooling time are strictly controlled during the hot melt process. When laying in the ground, fine sand needs to be used to fill around the pipe body to avoid sharp stones scratching the pipe wall. After backfilling, air tightness testing is carried out according to the specifications to confirm that there is no leakage before it can be put into use.

[Comprehensive performance advantages of long-term operation]

The service life of PE gas pipes in normal buried use can reach decades, without additional anti-corrosion treatment, the construction convenience is higher than that of traditional metal pipes, and the comprehensive operation and maintenance cost is lower. Its good flexibility can adapt to a small amount of foundation settlement scenarios, and there will be no force fracture problems, which can stably meet the long-term safe transportation of natural gas in Hubei cities and towns.