55°圆锥管螺纹(BSPT)
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
管螺纹尺寸
表
关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf
55°圆柱管螺纹的型式和尺寸
British Pipe Thread (惠氏管螺纹) -- 圆柱 (BSPP/BSPF)
螺纹代号 基本尺寸
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
底孔尺寸
mm
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