Polyethylene (PE) pipe for gas
Huaxi Village brand PE gas pipeline, the product quality fully meets the national GB15558.1-2015 (buried polyethylene pipe for gas) requirements. The production process strictly implements the ISO9001 and IS014001 guarantee systems. Under the specified conditions of use (refer to CJJ63-2018), its service life can reach 50 years. Perfect quality assurance system, advanced testing methods and strict testing system ensure the excellent quality of the company's products. Over the years, the company's pipe pass rate is 100%, and the factory pass rate is 100%.
Earthquake and weather resistance
It has strong adaptability to uneven foundation and dislocation, and can withstand harsh environments such as earthquakes and typhoons.
Ultra high strength
Always maintain high strength, excellent resistance to environmental stress cracking, and good creep resistance.
Corrosion-resistant, no need for anti-corrosion treatment, and long service life.
Environmentally friendly and non-toxic
Non-toxic, safe and hygienic, polyethylene itself is a non-toxic and renewable material that will not pollute the environment.
Easy construction and maintenance
The connection is convenient and reliable, the construction and maintenance are simple (the water does not stop during the period), and it is suitable for excavation and trenchless technology.
Low temperature shock resistance
It has good low temperature impact resistance and can be used safely in the range of -20 to 40°C, and it will not be affected by winter construction.
Maximum allowable working pressure (MPA) for polyethylene pipes
|Types of Town Gas||PE80 PE100|
|liquefied petroleum gas||mixed air||0.40||0.20||0.50||0.30|
|artificial gas||dry gas||0.40||0.20||0.50||0.30|
|performance||unit||Require||Test parameters||experiment method|
|Hydrostatic strength (HS)||h||Destruction time 2100||
20°C (ring stress)
|Destruction time N165||
80°C (ring stress)
|Destruction time 21000||
80°C (ring stress)
|Elongation at break||%||2350||GB/T 8804.3-2003|
|Weatherability is only available for non-black pipes||
After climate aging, the following properties should be met: Thermal stability (table below)
HS (165h/80°C) (table)
Elongation at break (table)
|Resistant to rapid crack propagation (RCP)|
|Full-size (FS) test: dn≥250mm or S4 test: suitable for all diameters||Mpa Mpa||
Critical pressure for full-scale testing, Pc.FS≥ 1.5xM0P
Critical pressure of the S4 test Pc.s4≥ MOP/2.4-0.072d
|Resistant to slow crack growth >5mm||h||165||
80°C, 0.8Mpa (test pressure)
80°C, 0.92Mpa (test pressure)
Physical properties of the pipe
|project||unit||performance requirements||Test parameters||experiment method|
|Thermal stability (oxidation induction time)||min||>20||200℃||GB/T 17391-1998|
|Melt Mass Flow Rate (MFR)||g/10min||20% change in MFR before and after processing<||190℃, 5kg||GB/T 3682-2000|
|Vertical retraction rate||%||≤3||110℃||GB/T 6671-2001|
|Material Grade/Standard Size Ratio||SDR17||SDR11|
|PE80||The maximum permissible pressure PN≤0.3P||The maximum allowable pressure PN≤0.5Pa|
|PE100||The maximum allowable pressure PN≤0.4Pa||The maximum allowable pressure PN≤0.7Pa|
|Specification Nominal outer diameter (mm)||Wall thickness (mm)||Weight (kg/m)||Wall thickness (mm)||Weight (kg/m)|