
| 设计制造 | GB/T12238-2008 |
| 连接标准 | JB/T 79.1-1994 |
| 结构长度 | GB/T12221-2005 |
| 压力试验 | GB/T13927-2008 |
| DN | L | D | K | R | C | f | n-d |
| 50 | 110 | 160/165 | 125 | 100 | 20 | 3 | 4-18 |
| 65 | 130 | 180/185 | 145 | 120 | 20 | 3 | 4-18 |
| 80 | 150 | 195/200 | 160 | 135 | 20 | 3 | 8-18 |
| 100 | 170 | 215/220 | 180 | 155 | 22 | 3 | 8-18 |
| 125 | 190 | 245/250 | 210 | 185 | 22 | 3 | 8-18 |
| 150 | 210 | 280/285 | 240 | 210 | 24 | 3 | 8-23 |
| 200 | 245 | 335/340 | 295 | 265 | 24 | 3 | 12-23 |
| 250 | 290 | 405 | 355 | 320 | 30 | 3 | 12-25 |