圆柱管螺纹尺寸表(BSP)(G)
旋转接头连接口G螺纹如何选择？
以G螺纹G3/4"为例:
G3/4"(3/4"BSP)(PF 3/4 )为圆柱管螺纹,管子公称直径3/4",旋向为右旋；如螺纹为左旋,代号后加"左"或"LH",
牙型角=55° P=25.4/n h=0.960491P r=0.137329P
| 圆柱管螺纹尺寸(BSP)-志存密封资料 | ||||||||||||||||
| 管子公称直径 | 每英寸牙数n | 螺距P | 螺纹牙有效高度h | 螺纹长度 | 外螺纹直径 | 内螺纹直径 | 推荐螺纹底孔 | |||||||||
| 最大大径 | 最小大径 | 最大中径 | 最小中径 | 最大小径 | 最小小径 | 最小大径 | 最大中径 | 最小中径 | 最大小径 | 最小小径 | ||||||
| 1/8 | 28 | 0.907 | 0.581 | \ | 9.728 | \ | 9.174 | \ | 8.566 | \ | \ | \ | \ | \ | \ | \ |
| 1/4 | 19 | 1.337 | 0.581 | 16 | 13.157 | 12.907 | 12.301 | 12.176 | 11.445 | 11.289 | 13.157 | 12.426 | 12.301 | 11.89 | 11.445 | 11.5 |
| 3/8 | 19 | 1.337 | 0.856 | 18 | 16.662 | 16.412 | 15.806 | 15.681 | 14.95 | 14.794 | 16.662 | 15.931 | 15.806 | 15.395 | 14.95 | 15 |
| 1/2 | 14 | 1.814 | 1.162 | 22 | 20.955 | 20.671 | 19.793 | 19.651 | 18.631 | 18.453 | 20.955 | 19.936 | 19.793 | 19.172 | 18.631 | 18.5 |
| 5/8 | 14 | 1.814 | 1.162 | \ | 22.911 | \ | 21.749 | \ | 20.587 | \ | \ | \ | \ | \ | \ | \ |
| 3/4 | 14 | 1.814 | 1.162 | 25 | 26.441 | 26.157 | 25.279 | 25.137 | 24.117 | 23.939 | 26.441 | 25.421 | 25.279 | 24.658 | 24.117 | 24 |
| 7/8 | 14 | 1.814 | 1.162 | \ | 30.201 | \ | 29.039 | \ | 27.877 | \ | \ | \ | \ | \ | \ | \ |
| 1 | 11 | 2.309 | 1.479 | 28 | 33.249 | 32.889 | 31.77 | 31.59 | 30.291 | 30.066 | 33.249 | 31.95 | 31.79 | 30931 | 30.291 | 30.3 |
| 1-1/4 | 11 | 2.309 | 1.479 | 32 | 41.91 | 41.55 | 40.431 | 40.251 | 38.952 | 38.727 | 41.91 | 40.611 | 40.431 | 39.592 | 38.952 | 39 |
| 1-1/2 | 11 | 2.309 | 1.479 | 32 | 47.803 | 47.443 | 46.324 | 46.144 | 44.845 | 44.62 | 47.803 | 46.504 | 46.324 | 45.485 | 44.845 | 45 |
| 2 | 11 | 2.309 | 1.479 | 32 | 59.614 | 59.254 | 58.135 | 57.955 | 56.656 | 56.431 | 59.614 | 58.315 | 58.135 | 57.296 | 56.656 | 56.7 |
| 2-1/2 | 11 | 2.309 | 1.479 | 36 | 75.184 | 74.75 | 73.705 | 73.488 | 72.226 | 71.955 | 75.184 | 73.922 | 73.705 | 72.866 | 72.226 | 72.5 |
| 3 | 11 | 2.309 | 1.479 | 36 | 87.184 | 87.45 | 86.405 | 86.188 | 84.926 | 84.655 | 87.884 | 86.622 | 86.405 | 85.566 | 84.926 | 85 |
| 3-1/2 | 11 | 2.309 | 1.479 | \ | 100.330 | \ | 98.851 | \ | 97.372 | \ | \ | \ | \ | \ | \ | \ |
| 4 | 11 | 2.309 | 1.479 | 40 | 113.03 | 112.60 | 111.55 | 111.33 | 110.07 | 109.80 | 113.03 | 111.77 | 115.55 | 110.71 | 110.07 | 110 |
| 4-1/2 | 11 | 2.309 | 1.479 | \ | 125.730 | \ | 124.251 | \ | 122.772 | \ | \ | \ | \ | \ | \ | \ |
| 5 | 11 | 2.309 | 1.479 | 45 | 138.43 | 138.0 | 136.95 | 136.73 | 135.47 | 135.20 | 138.43 | 137.17 | 136.95 | 136.11 | 135.47 | 135.5 |
| 5-1/2 | 11 | 2.309 | 1.479 | \ | 151.130 | \ | 149.651 | \ | 148.172 | \ | \ | \ | \ | \ | \ | \ |
| 6 | 11 | 2.309 | 1.479 | 45 | 163.83 | 163.40 | 162.35 | 162.13 | 160.87 | 160.60 | 163.83 | 162.57 | 162.35 | 161.51 | 160.87 | 161 |
| 7 | 11 | 2.309 | 1.479 | \ | 189.230 | \ | 187.751 | \ | 186.272 | \ | \ | \ | \ | \ | \ | \ |
| 8 | 11 | 2.309 | 1.479 | \ | 214.630 | \ | 213.151 | \ | 211.672 | \ | \ | \ | \ | \ | \ | \ |
| 9 | 11 | 2.309 | 1.479 | \ | 240.030 | \ | 238.551 | \ | 237.072 | \ | \ | \ | \ | \ | \ | \ |
| 10 | 11 | 2.309 | 1.479 | \ | 265.430 | \ | 263.951 | \ | 262.472 | \ | \ | \ | \ | \ | \ | \ |
| 12 | 11 | 2.309 | 1.479 | \ | 316.230 | \ | 314.751 | \ | 313.272 | \ | \ | \ | \ | \ | \ | \ |
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发布时间：2023-05-18 01:16
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