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公称直径
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法兰外径 | 孔距D2 | 内径 | T | n-Φ | ||||
| DN(mm) | D1 | GB | JIS | ANSI | D3 | GB | JIS | ANSI | |
| 40 | 148 | 110 | 105 | 98.4 | 45 | 39 | 4-Φ19X25 | 4-Φ19X25 | 4-Φ19X25 |
| 50 | 162 | 125 | 120 | 120.7 | 50 | 40 | 4-Φ19X26.5 | 4-Φ19X26.5 | 4-Φ19X26.5 |
| 65 | 180 | 145 | 140 | 139.7 | 64 | 42 | 4-Φ19X26.5 | 4-Φ19X26.5 | 4-Φ19X26.5 |
| 80 | 198 | 160 | 150 | 152.4 | 77 | 42 | 8-Φ19X25 | 8-Φ19X24 | 4-Φ19X20 |
| 100 | 225 | 180 | 175 | 190.5 | 96 | 52 | 8-Φ18X32 | 8-Φ19X32 | 8-Φ19X32 |
| 125 | 255 | 210 | 210 | 215.9 | 120 | 61 | 8-Φ23X33 | 8-Φ23X33 | 8-Φ23X33 |
| 150 | 285 | 240 | 240 | 241.3 | 145 | 71 | 8-Φ23X34 | 8-Φ23X34 | 8-Φ23X34 |
| 200 | 340 | 295 | 290 | 298.5 | 196.5 | 81 | 8-Φ23X33.5 | 12-Φ23×27 | 8-Φ23x33.5 |
