英寸 | 公称直径 | 外直径 | SCH5 | SCH10 | SCH20 | SCH40 | SCH80 | |
2分管 | DN10 | 14 | 1.2 | 1.6 | 2.0 | 2.5 | 3.0 | |
4分管 | DN15 | 20 | 挑丝22 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 |
6分管 | DN20 | 25 | 挑丝27 | 1.5 | 2.0 | 2.5 | 3.0 | 4.0 |
1′ | DN25 | 32 | 挑丝32 | 1.5 | 3.0 | 3.0 | 3.5 | 4.5 |
1.2′ | DN32 | 38 | 挑丝42 | 1.5 | 3.0 | 3.0 | 3.5 | 5.0 |
1.5′ | DN40 | 45 | 挑丝48 | 1.5 | 3.0 | 3.0 | 3.5 | 5.0 |
2′ | DN50 | 57 | 挑丝60 | 1.5 | 3.0 | 3.5 | 4.0 | 5.5 |
2.5′ | DN65 | 76 | 2.0 | 3.0 | 4.5 | 5.0 | 7.0 | |
3′ | DN80 | 89 | 2.0 | 3.0 | 4.5 | 5.5 | 8.0 | |
4′ | DN100 | 108 | 2.0 | 3.0 | 5.0 | 6.0 | 9.0 | |
5′ | DN125 | 133 | 3.0 | 3.5 | 5.0 | 6.0 | 10 | |
6′ | DN150 | 159 | 3.0 | 3.5 | 5.5 | 7.0 | 11 | |
8′ | DN200 | 219 | 3.0 | 4.0 | 6.0 | 8.0 | 12.5 | |
10′ | DN250 | 273 | 4.0 | 4.0 | 6.0 | 9.0 | 12.5 | |
12′ | DN300 | 325 | 1.0 | 4.5 | 6.0 | 10 | 12.5 |