1) threadless
无螺纹
1.
The flangeless and threadless valves and fittings developed by a German company -HAWLE are widely used in European countries now.
德国HAWLE公司开发的无法兰、无螺纹的闸门和管道配件,目前在欧洲各国饮用水管道中逐步推广应用,其连接方式称为BAIO-SYSTEM(卡口式连接系统),其优点是安装简单,具有抗拉锁定接口,重量轻,储备费用低,可广泛适用于铸铁、钢、PE和PVC管,代表了未来管道附件的发展趋势。
2) unthreaded hole
无螺纹机
3) plain hole
无螺纹孔
4) grub screw
无头螺纹
5) threadless
无螺纹的
6) unthreaded portion
无螺纹部分
补充资料:55°圆锥管螺纹型式和尺寸
螺纹代号 | 基本尺寸 英 寸 | 大径 mm d=D | 螺距 mm p | 每英寸牙数 tpi | 中径 mm d2=D2 | 小径 外螺纹 d3 | 牙型高度 H1 | 圆弧尺寸 r | 底孔尺寸 mm |
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 | 56.656 | 1.479 | 0.317 | 56 |
R 2 1/2 | 2 1/2" | 75.184 | 2.309 | 11 | 73.705 | 72.226 | 1.479 | 0.317 | 71 |
R 3 | 3" | 87.884 | 2.309 | 11 | 86.405 | 84.926 | 1.479 | 0.317 | 85.5 |
R 4 | 4" | 113.030 | 2.309 | 11 | 111.551 | 110.072 | 1.479 | 0.317 | 110.5 |
R 5 | 5" | 138.430 | 2.309 | 11 | 136.951 | 135.472 | 1.479 | 0.317 | 136 |
R 6 | 6" | 163.830 | 2.309 | 11 | 162.351 | 160.872 | 1.479 | 0.317 | 161.5 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条