我国塑料管道发展很快，质量在不断提高。其中聚乙烯PE管由于其自身独特的优点被广泛的应用于建筑给水，建筑排水，埋地排水管，建筑采暖、输气管，电工与电讯保护套管、工业用管、农业用管等。其主要应用于城市供水、城市燃气供应及农田灌溉等领域。管材规格公称外径dn,mm公称壁厚en,mm标准尺寸比SDR26SDR21SDR17SDR13.6SDR11公称压力，Mpa0.60.81.01.251.632————3.040————3.750————4.663———4.75.875——4.55.66.890—4.35.46.78.21104.25.36.68.110.01254.86.07.49.211.41405.46.78.310.312.71606.27.79.511.814.61806.98.610.713.316.42007.79.611.914.718.22258.610.813.416.620.52509.611.914.818.422.728010.713.416.620.625.431512.115.018.723.228.635513.616.921.126.132.240015.319.123.729.436.345017.221.526.733.140.950019.123.929.736.845.456021.426.733.241.250.863024.130.037.446.357.271027.233.942.152.280030.638.147.458.890034.442.953.3100038.247.759.3)