度管螺纹尺寸.docx

55°圆柱管螺纹的型式和尺寸 螺纹代号 基本尺寸  大径 mm 螺距 mm 每英寸 中径 mm 小径外螺纹  牙型高度 底孔尺寸 d3G1/8 d3 G 1/8 1/8 9.728 0.907 28 9.147 8.566 0.581 8.7 G 1/4 1/4 13.157 1.337 19 12.301 11.445 0.856 11.6 G 3/8 3/8 16.662 1.337 19 15.806 14.95 0.856 15 G 1/2 1/2 20.955 1.814 14 19.793 18.631 1.162 19 G 5/8 5/8 22.911 1.814 14 21.749 20.587 1.162 20.75 G 3/4 3/4 26.441 1.814 14 25.279 24.117 1.162 24.5 G 7/8 7/8 30.201 1.814 14 29.039 27.877 1.162 28 G 1 1 33.249 2.309 11 31.77 30.291 1.479 30.5 G 1 1/8 1 1/8 37.897 2.309 11 36.418 34.939 1.479 35 G 1 1/4 1 1/4 41.91 2.309 11 40.431 38.952 1.479 39.5 G 1 3/8 1 3/8 44.323 2.309 11 42.844 41.365 1.479 41.5 G 1 1/2 1 1/2 47.803 2.309 11 46.324 44.845 1.479 45 G 1 3/4 1 3/4 53.746 2.309 11 52.267 50.788 1.479 51 G 2 2 59.614 2.309 11 58.135 56.656 1.479 57 G 2 1/4 2 1/4 65.71 2.309 11 64.231 62.752 1.479 63 G 2 1/2 2 1/2 75.184 2.309 11 73.705 72.226 1.479 72.5 G 2 3/4 2 3/4 81.534 2.309 11 80.055 78.576 1.479 79 G 3 3 87.884 2.309 11 86.405 84.926 1.479 85. G 3 1/4 3 1/4 93.98 2.309 11 92.501 91.022 1.479 91 G 3 1/2 3 1/2 100.33 2.309 11 98.351 97.372 1.479 97.75 G 3 3/4 3 3/4 106.68 2.309 11 105.201 103.722 1.479 104 G 4 4 113.03 2.309 11 111.55 110.072 1.479 110.5 G 4 1/2 4 1/2 125.73 2.309 11 124.251 122.772 1.479 123 G 5 5 138.43 2.309 11 136.951 135.472 1.479 136 G 5 1/2 5 1/2 151.13 2.309 11 149.651 148.172 1.479 148.5 G 6 6 163.83 2.309 11 162.351 160.872 1.479 161.5 p 牙数 tpi d2=D2 H1 mm 55°圆锥管螺纹的型式和尺寸 d3R d3 R 1/16 1/16 7.723 0.907 28 7.142 6.561 0.581 0.125 6.4 R 1/8 1/8 9.728 0.907 28 9.147 8.566 0.581 0.125 8.4 R 1/4 1/4 13.157 1.337 19 12.301 11.445 0.856 0.184 11.2 R 3/8 3/8 16.662 1.337 19 15.806 14.950 0.856 0.184 14.75 R 1/2 1/2 20.955 1.814 14 19.793 18.631 1.162 0.249 18.25 R 3/4 3/4 26.441 1.814 14 25.279 24.117 1.162 0.249 23.75 R 1 1 33.249 2.309 11 31.77 30.291 1.479 0.317 30 R 1 1/4 1 1/4 41.910 2.309 11 40.431 38.952 1.479 0.317 38.5 R 1 1/2 1 1/2 47.803 2.309 11 46.324 44.845 1.479 0.317 44.5 R 2 2 59.614 2.309 11 58.135