镀锌管 GB/T 3091-2015 | 喷漆涂塑管 GB/T 28897-2021 |
沟槽 | 螺纹 | 钻孔 |
中国国家标准GB/T3091-2015《低压流体输送用焊接钢管》 | |||||
公称尺寸 | 外径mm | 壁厚mm | |||
A | B | C | D | ||
1/2 | 21.3 | 2.2 | 2.5 | 2.8 | 3.5 |
3/4 | 26.9 | 2.2 | 2.5 | 2.8 | 3.5 |
1 | 33.7 | 2.5 | 3 | 3.2 | 4 |
1 1/4 | 42.4 | 2.75 | 3.25 | 3.5 | 4 |
1 1/2 | 48.3 | 3 | 3.25 | 3.5 | 4.5 |
2 | 60.3 | 3 | 3.5 | 3.8 | 4.5 |
2 1/2 | 76.1 | 3.25 | 3.6 | 4 | 4.5 |
3 | 88.9 | 3.25 | 3.6 | 4 | 5 |
4 | 114.3 | 3.25 | 3.6 | 4 | 5 |
5 | 139.7 | 3.25 | 3.6 | 4 | 5.5 |
6 | 165.1 | 3.5 | 4 | 4.5 | 6 |
8 | 219.1 | 4.5 | 5.5 | 6 | 7 |