Polyethylene (PE) pipe for gas applications
The PE gas pipelines manufactured by Huaxi Village fully meet the requirements of the national standard GB15558.1-2015 (Polyethylene Pipes for Underground Gas Pipelines). The production process strictly adheres to the ISO9001 and ISO14001 quality management systems. Under the specified service conditions (referencing CJJ63-2018), these pipelines have a service life of up to 50 years. A comprehensive quality assurance system, advanced testing methods, and stringent inspection procedures ensure the superior quality of our products. Over the years, our company has maintained a 100% pass rate for pipe products and achieved a 100% qualification rate at the factory exit.
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Polyethylene (PE) pipe for gas applications
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Product Details
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Maximum Allowable Working Pressure (MPa) for Polyethylene Pipes
| Types of Town Gas | PE80 PE100 | ||||
| SDR11 | SDR17 | SDR11 | SDR17 | ||
| Natural gas | 0.50 | 0.30 | 0.70 | 0.40 | |
| Liquefied petroleum gas | Mix air | 0.40 | 0.20 | 0.50 | 0.30 |
| Gaseous | 0.20 | 0.10 | 0.30 | 0.20 | |
| Artificial gas | Dry gas | 0.40 | 0.20 | 0.50 | 0.30 |
| Other | 0.20 | 0.10 | 0.30 | 0.20 | |
Performance requirements
| Performance | Unit | Requirements | Test parameters | Test method |
| Hydrostatic Strength (HS) | h | Destroy Time 2100 |
20℃ (ambient stress) PE80 PE100 9.0 MPa 12.4 MPa |
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| Destroy Time N165 |
80℃ (circumferential stress) PE80 PE100 4.5 MPa 5.4 MPa |
GB/T 6111-2003 | ||
| Time damage 21000 |
80℃ (circumferential stress) PE80 PE100 4.0 MPa 5.0 MPa |
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| Elongation at break | % | 2350 | GB/T 8804.3-2003 | |
| Weather resistance applies only to non-black tubing. |
After climate aging, the following performance characteristics shall meet the requirements: thermal stability (see the table below). HS (165h/80℃) (this table) Elongation at break (this table) |
E > 3.5 GJ/m² |
GB/T 17391-1998 GB/T 6111-2003 GB/T 8804.3-2003 |
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| Resistance to Rapid Crack Propagation (RCP) | ||||
| Full-size (FS) testing: dn ≥ 250 mm, or S4 testing: applicable to all diameters. | Mpa Mpa |
The critical pressure for full-scale testing, Pc.FS, shall be ≥1.5 × M0P. The critical pressure for Test S4, Pc.s4, shall be ≥ MOP/2.4 - 0.072d. |
0℃ 0℃ |
ISO 13478:1997 GB/T19280-2003 |
| Resistance to slow crack growth >5mm | h | 165 |
80℃, 0.8 MPa (test pressure) 80℃, 0.92 MPa (test pressure) |
GB/T 18479-2001 |
Physical Properties of Pipes
| Project | Unit | Performance requirements | Test parameters | Test method |
| Thermal stability (oxidation induction time) | min | >20 | 200℃ | GB/T 17391-1998 |
| Melt Flow Rate (MFR) | g/10min | MFR change before and after processing < 20% | 190℃, 5 kg | GB/T 3682-2000 |
| Longitudinal shrinkage rate | % | ≤3 | 110℃ | GB/T 6671-2001 |
Specification Parameters
| Material Grade/Standard Size Ratio | SDR17 | SDR11 | ||
| PE80 | Maximum allowable pressure PN ≤ 0.3P | Maximum allowable pressure PN ≤ 0.5 Pa | ||
| PE100 | Maximum allowable pressure PN ≤ 0.4 Pa | Maximum allowable pressure PN ≤ 0.7 Pa | ||
| Nominal Outer Diameter (mm) | Wall thickness (mm) | Weight (kg/m) | Wall thickness (mm) | Weight (kg/m) |
| D20 | 3.0 | 0.16 | ||
| D25 | 3.0 | 0.21 | ||
| D32 | 3.0 | 0.28 | 3.0 | 0.28 |
| D40 | 3.0 | 0.35 | 3.7 | 0.43 |
| D50 | 3.0 | 0.45 | 4.6 | 0.66 |
| D63 | 3.8 | 0.71 | 5.8 | 1.05 |
| D75 | 4.5 | 1.01 | 6.8 | 1.47 |
| D90 | 5.4 | 1.45 | 8.2 | 2.13 |
| D110 | 6.6 | 2.16 | 10 | 3.17 |
| D125 | 7.4 | 2.76 | 11.4 | 4.11 |
| D140 | 8. | 3.47 | 12.7 | 5.13 |
| D160 | 9.5 | 4.53 | 14.6 | 6.73 |
| D180 | 10.7 | 5.75 | 16.4 | 8.51 |
| D200 | 11.9 | 7.10 | 18.2 | 10.49 |
| D225 | 13.4 | 8.99 | 20.5 | 13.30 |
| D250 | 14.8 | 11.04 | 22.7 | 16.36 |
| D280 | 16.6 | 13.87 | 25.4 | 20.51 |
| D315 | 18.7 | 17.57 | 28.6 | 25.98 |
| D355 | 21.1 | 22.34 | 32.2 | 32.96 |
| D400 | 23.7 | 28.28 | 36.4 | 41.97 |
| D450 | 26.7 | 35.84 | 40.9 | 53.06 |
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Earthquake-resistant and weather-resistant
Ultra-high strength
Corrosion-resistant
Environmentally friendly and non-toxic
Easy to install and maintain