Application of HDPE plastic composite pipes for petrol stations

Europe and the United States and other developed countries, the proportion of polyethylene composite pipes used in petrol stations pipeline: the United States 100%, Europe close to 80%.
Most of the domestic gas stations are still using traditional metal pipes, only about 5,000 gas stations (foreign investment) use polyethylene composite pipeline, with Europe and the United States developed countries a large gap.
With the improvement of domestic environmental protection requirements, Sinopec, PetroChina, etc. began to use a large number of polyethylene composite pipes in new and rebuilt gas stations.

Single-layer composite Pipes

Compared to traditional metal pipes, polyethylene is an electrical insulator. When non-polar liquids such as petrol flow through the pipes, static electricity is generated and gradually builds up on the inner surface, when the energy reaches a certain level and comes into contact with a conductor, a sparking discharge occurs, which is likely to ignite the oil and gas in the pipes and lead to accidents such as fires or explosions.

Double-layer Composite Pipes

Basic requirements for insulated piping systems
In order to avoid pinholes, insulated plastic pipes should have a dielectric breakdown strength of more than 100 kV, measured in accordance with EN 60243-2. A polyethylene layer with a wall thickness of at least 4 mm is usually guaranteed to exceed this breakdown strength.

Process and Construction Site

Related Products