Definition of PE gas pipe

The buried polyethylene pipe for gas use, abbreviated as PE gas pipe, is mainly made of polyethylene resin and extruded into shape.

What color is PE gas pipeline

The color of the pipe is yellow or black, and there must be a prominent yellow color bar on the black pipe.

What are the product specifications for PE gas pipes

The standard size ratio is SDR17.6 with a diameter of 20 to 630 and a pressure of 0.2MPa

The standard size ratio is 0.4MPa for SDR11 with a diameter of 20 to 630

whyThe SDR11 series is suitable for transporting artificial coal gas and liquefied petroleum gas

According to ISO 4437:1988 (E) A1, if the pipe is to come into contact with liquid hydrocarbons (condensate, odorants, or aromatic hydrocarbons) throughout its entire service life, it is recommended to use SDR11 (S5) series pipes for a lifespan of 50 years. In China, manufactured gas and liquefied petroleum gas generally contain liquid hydrocarbons, so SDR11 is applicable to the transportation of natural gas, manufactured gas and liquefied petroleum gas.

What are the maximum allowable working pressures for two series of pipes

At 20 ℃, the maximum allowable working pressure for the SDR11 series is 0.4MPa, and the maximum allowable working pressure for the SDR17.6 series is 0.2MPa.

What are the advantages of PE gas pipes

1) High strength, excellent stress cracking resistance, and good creep resistance;

2) Good toughness and flexibility, strong adaptability to uneven and misaligned foundations, and able to resist harsh environments such as earthquakes and typhoons;

3) Has good weather resistance (including UV resistance) and long-term thermal stability;

4) Corrosion resistance, long service life, suitable for transporting natural gas, liquefied petroleum gas, and coal gas;

5) Smooth inner wall, high flow capacity, gas flow rate can reach 20m/s, saving operating costs;

6) Good wear resistance and abrasion resistance;

7) Good resistance to low temperature impact, can be safely used in the temperature range of -20-40 degrees, and is not affected during winter construction;

8) Hot melt (or electric melt) connection is convenient and reliable, with easy construction and maintenance (gas can be continuously supplied during the process);

9) Fully suitable for traditional excavation construction methods and new non excavation technologies such as pipe jacking, directional drilling, lining, cracking, and sinking underwater;

10) Polyethylene raw materials only contain two elements, carbon and hydrogen, which are harmless to the environment and environmentally friendly.