钢制旋塞阀 环连接（RJ）法兰密封面结构长度附加值
公称尺寸 DN | PN20 | PN50 | PN68 | PN110 | PN150 | PN260 | PN420 |
| 15 | — | 11 | — | -2 | 0 | 0 | 0 |
| 20 | — | 13 | — | 0 | 0 | 0 | 0 |
| 25 | 13 | 13 | — | 0 | 0 | 0 | 0 |
| 32 | 13 | 13 | — | 0 | 0 | 0 | 3 |
| 40 | 13 | 13 | — | 0 | 0 | 0 | 3 |
| 50 | 13 | 16 | 3 | 3 | 3 | 3 | 3 |
| 65 | 13 | 16 | 3 | 3 | 3 | 3 | 6 |
| 80 | 13 | 16 | 3 | 3 | 3 | 3 | 6 |
| 100 | 13 | 16 | 3 | 3 | 3 | 3 | 10 |
| 125 | 13 | 16 | 3 | 3 | 3 | 3 | 13 |
| 150 | 13 | 16 | 3 | 3 | 3 | 6 | 13 |
| 200 | 13 | 16 | 3 | 3 | 3 | 10 | 16 |
| 250 | 13 | 16 | 3 | 3 | 3 | 10 | 22 |
| 300 | 13 | 16 | 3 | 3 | 3 | 16 | 22 |
| 350 | 13 | 16 | 3 | 3 | 10 | 19 | — |
| 400 | 13 | 16 | 3 | 3 | 10 | 22 | — |
| 450 | 13 | 16 | 3 | 3 | 13 | 22 | — |
| 500 | 13 | 19 | 6 | 6 | 13 | 22 | — |
| 550 | 13 | 22 | 10 | 10 | — | — | — |
| 600 | 13 | 22 | 10 | 10 | 19 | 28 | — |
| 注：仅适用于美洲体系法兰连接。 | |||||||
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