1.给水用 PE80聚乙烯 (PE)管材 公称外径 公称壁厚 en,mm 长度 dn SDR33 SDR21 SDR17 SDR13.6 SDR11 L 公称压力, MPa mm 0.4 0.6 0.8 1 1.25 mm 20 - - - 2.3 2.3 6000 25 - - 2 2.3 2.3 32 - - 2 2.4 3 9000 40 - 2 2.3 3 3.7 50 2 2 2.8 3.7 4.6 12000 63 2 3 3.6 4.7 5.8 75 2.3 3.6 4.5 5.6 6.8 90 2.8 4.3 5.4 6.7 8.2 110 3.4 5.3 6.6 8.1 10 125 3.8 6 7.4 9.2 11.4 140 4.3 6.7 8.3 10.3 12.7 160 4.9 7.7 9.5 11.8 14.6 180 5.5 8
公制 mm 管径(英) INCH 管径(公制) mm 壁厚 mm 备注 10S φ17.1×1.65 3/8" φ17.1 1.65 40S φ17.1×2.31 3/8" φ17.1 2.31 80S φ17.1×3.20 3/8" φ17.1 3.20 STD φ17.1×2.31 3/8" φ17.1 2.31 40 φ17.1×2.31 3/8" φ17.1 2.31 XS φ17.1×3.20 3/8" φ17.1 3.20 80 φ17.1×3.20 3/8" φ17.1 3.20 5S φ21.3×1.65 1/2" φ21.3 1.65 10S φ21.3×2.11 1/2" φ21.3 2.11 40S φ21.3×2.77 1/2" φ21.3 2.77 80S φ21.3×3.73 1/2" φ21.3 3.73 STD φ21.3×2.77 1/2" φ21.3 2