1、各国塑料管材标准尺寸比较表外径壁厚尺寸SCH80 DIN JIS BS SCH80 DIN JIS BS美标国标日标英标美标国标日标英标(mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)1/2” 21.34 20 22 21.2 3.73 2.3 2.7 1.73/4” 26.67 25 26 26.6 3.91 2.8 3.2 1.91” 33.40 32 32 33.4 4.55 3.6 3.2 2.21-1/4” 42.16 40 38 42.1 4.85 3.0 3.2 2.71-1/2” 48.26 50 48 48.1 5.08 3.7 3.7 3.12
2、” 60.33 63 60 60.2 5.54 4.7 4.1 3.92-1/2” 73.03 75 76 75.1 7.01 5.5 4.1 4.83” 88.90 90 89 88.7 7.62 6.6 5.5 5.74” 114.30 110 114 114.1 8.56 8.1 6.6 7.35” 141.30 140 9.53 10.36” 168.28 160 165 168 10.97 11.8 9.0 10.88” 219.08 225 216 218.8 12.70 16.6 10.3 12.610” 273.05 280 267 15.06 20.6 12.712” 323.85 315 318 17.45 23.2 15.1
