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随着经济社会的发展,管道燃气在工业生产和城镇居民的生活中的广泛应用。在各地的燃气管道工程的建设中,PE(高密度聚乙烯)管道凭借自身的特点,越来越多的被燃气公司所采用。聚乙烯管道主要适用于工作温度在-20~40℃,公称直径不大于630mm,最大允许工作压力不大于0.7MPa的埋地输送城镇燃气用管道。1 PE管道的特性聚乙烯管道具有许多良好的特性,如耐低温,韧
With the economic and social development, pipeline gas is widely used in industrial production and urban residents. In the construction of gas pipeline projects all over the world, PE (High Density Polyethylene) pipes are increasingly used by gas companies due to their own characteristics. Polyethylene pipe is mainly applied to the operating temperature at -20 ~ 40 ℃, the nominal diameter of not more than 630mm, the maximum allowable working pressure of not more than 0.7MPa buried pipeline transportation town gas. 1 PE pipe characteristics Polyethylene pipe has many good features, such as low temperature, toughness