NPT BSPT
螺纹的标准规格
NPT锥螺纹 NPT锥螺纹 序 号
螺纹代号 1(1/2)"-11.5 2"-11.5 2(1/2)"-8 3"-8 3(1/2)"-8 4"-8 5"-8 6"-8 8"-8 10"-8 12"-8
大
径
中
径
小
径
1 2 3 4 6 7 8 9 10 11 12
48.054 60.092 72.699 88.608 101.316 113.973 140.952 167.792 218.441 272.312 323.032
46.087 58.325 70.159 86.068 98.776 111.433 138.412 165.252 215.901 269.772 320.492
44.52 56.558 67.619 83.528 96.236 108.893 135.872 162.712 213.361 267.232 317.952
BSPT锥螺纹 BSPT锥螺纹 序 号
螺纹代号 1(1/2)"-11 2"-11 2(1/2)-11 3"-11 3(1/2)"-11 4"-11 5"-11 6"-11 4(1/2)"-11 5(1/2)"-11
大
径
中
径
小
径
1 2 3 4 5 6 7 8 9 10
47.803 59.614 75.184 87.884 100.33 113.03 138.43 163.83 125.73 151.13
46.324 58.135 73.705 86.405 98.851 111.551 136.951 162.351 124.251 149.651
44.845 56.656 72.226 84.926 97.372 110.072 135.472 160.872 122.772 148.172
