他压力等级的尺寸DN/mmDEa/mm公称壁厚enom/mmbC20C25C30C40C50C64C10040564.4c4.44.44.450664.4c4.44.44.460774.4c4.44.44.465824.4c4.44.44.480984.4c4.44.44.81001184.4c4.44.45.51251444.5c4.54.86.51501704.5c4.55.37.42002224.7c5.46.59.22502745.5c6.47.811.13003265.16.2c7.48.912.93503785.16.3cd7.18.410.214.84004295.56.5cd7.89.311.316.54504806.16.9c8.610.312.618.45005326.57.5c9.311.213.720.26006357.68.7c10.913.116.123.87007387.38.8cd9.912.415.018.527.58008428.19.6c11.114.016.921.09009458.910.6c12.315.518.823.4100010489.811.6c13.417.120.71100115210.612.6c14.718.722.71200125511.413.6c15.820.21400146213.115.7c18.21500156513.916.7c19.41600166814.817.7c20.61800187516.419.7c23.02000208218.121.8c25.42200228819.823.8c2400249521.425.8c2600270223.127.9ca公差+1mm。b有焊环的管见ISO10804。c首选等级。d对于首选等级,厚度略大于计算值,在C40和C30之间及C30和C25之间平滑过渡。
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