详细说明
压力等级：燃气用埋地聚乙烯（PE）管道的工作压力详见下表。
Pressure grade: the working pressure of buried polyethylene (PE) pipes for the supply of gaseous fuels is shown in the table below.
规格型号：dn20mm～dn630mm。
Specification and model: dn20mm～dn630mm
执行标准：GB/T 15558.1-2015《燃气用埋地聚乙烯（PE）管材》。
Executive standard: GB/T 15558.1-2015 Buried Polyethylene (PE) Piping Systems for the Supply of Gaseous Fuels — Part 1: Pipes
性能特点：
Performance features:
1.密度小，重量轻，容易搬运和安装；
1. Low density, light weight, easy to handle and install;
2.可耐多种化学介质腐蚀；
2. Be able to resist corrosion by a range of chemical media;
3.水力性能优越，其磨阻系数仅为0.009；
3. Excellent hydraulic performance: the wear resistance coefficient is only 0.009;
4.使用寿命长，可达50年以上；
4. Long service lifetime: up to 50 years;
5.连接可靠；
5. Reliable connection;
6.高韧性，抗震性能好；
6.toughness and good seismic performance;
7.较好的抵抗慢速裂纹增长(SCG)和快速裂纹扩展(RCP)的能力。
7. Better resistance to slow crack growth (SCG) and rapid crack propagation (RCP).
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