1/16 28 7.723 6.561 1/16 28 7.723 1/8 28 9.728 8.566 1/8 28 9.728 1/4 19 13.157 11.445 1/4 19 13.157 3/8 19 16.662 14.95 3/8 19 16.662 1/2 14 20.955 18.631 1/2 14 20.955 3/4 14 26.441 24.117 5/8 14 22.911 1 11 33.249 30.291 3/4 14 26.441 1 1/4 11 41.91 38.952 7/8 14 30.201 1 1/2 11 47.803 44.845 1 11 33.249 2 11 59.614 56.656 1 1/8 11 37.897 2 1/2 11 75.184 72.226 1 1/4 11 41.91 3 11 87.884 84.926
大径(基 准直径) d=D 中径 d2=D2 小径 d1=D1 1/16 7.723 7.142 6.561 1分 DN6 1/8 9.728 9.147 8.566 2分 DN8 1/4 13.157 12.301 11.445 3分 DN10 3/8 16.662 15.806 14.950 4分 DN15 1/2 21.3 2.8 2.45 20.955 19.793 18.631 6分 DN20 3/4 26.9 2.8 2.45 26.441 25.279 24.117 1寸 DN25 1 33.7 3.2 2.8 33.249 31.770 30.291 1.2寸 DN32 1.1/4 42.4 3.5 3.06 41.910 40.431 38.952 1.5寸 DN40 1.1/2 48.3 3.5 3.06 47.803 46.324 44.845 2寸 DN50 2 6