公称管规格 (NPS) | DN | 坡口处外径 | 端部内径 | 最小壁厚 | 异径接头总长度 |
t / t1 | H | ||||
1/2 ~ 2 1/2 | 15 - 65 | +1.6,-0.8 | 0.8 | 除另有说明,直接按照最小壁厚的87.5% | 2 |
3 ~ 3 1/2 | 80 - 90 | 1.6 | 1.6 | 2 | |
4 | 100 | 1.6 | 1.6 | 2 | |
5 ~ 8 | 125 - 200 | +2.4,-1.6 | 1.6 | 2 | |
10 ~ 18 | 250 - 450 | +4.0,-3.2 | 3.2 | 2 | |
20 ~ 24 | 500 - 600 | +6.4,-4.8 | 4.8 | 2 | |
26 ~ 30 | 650 - 750 | +6.4,-4.8 | 4.8 | 5 | |
32 ~ 48 | 800 - 1200 | +6.4,-4.8 | 4.8 | 5 |