美標法蘭止回閥 ANSI/ASME Check Valve
性能規范
設計與制造：API6D、BS1868、ASME B16.34
結構長度：ASME B16.10、API6D
法蘭連接尺寸：ASME B16.5、ASME B16.25、ASME B16.47
檢驗和測試:ISO5208、API598、BS 6755
主要外形尺寸
| Class150 | ||||||||
| Size d | d | D | D1 | D2 | t | c | n-Φb | L |
| DN15 | 18 | 90 | 60.3 | 34.8 | 1.6 | 11.5 | 4-Φ16 | 108 |
| DN20 | 20 | 100 | 69.9 | 42.9 | 1.6 | 13 | 4-Φ16 | 117 |
| DN25 | 25 | 110 | 79.4 | 50.8 | 1.6 | 14.5 | 4-Φ16 | 127 |
| DN32 | 32 | 115 | 88.9 | 63.5 | 1.6 | 16 | 4-Φ16 | 140 |
| DN40 | 38 | 125 | 98.4 | 73 | 1.6 | 17.5 | 4-Φ16 | 165 |
| DN50 | 50 | 150 | 120.7 | 92.1 | 1.6 | 19 | 4-Φ19 | 203 |
| DN65 | 64 | 180 | 139.7 | 104.8 | 1.6 | 22.5 | 4-Φ19 | 216 |
| DN80 | 76 | 190 | 152.4 | 127 | 1.6 | 24 | 4-Φ19 | 241 |
| DN100 | 10o | 230 | 190.5 | 157.2 | 1.6 | 24 | 8-Φ19 | 292 |
| DN125 | 125 | 255 | 215.9 | 185.7 | 1.6 | 24 | 8-Φ22 | 330 |
| DN150 | 150 | 280 | 241.3 | 315.9 | 1.6 | 26 | 8-Φ22 | 356 |
| DN200 | 200 | 345 | 298.5 | 269.9 | 1.6 | 29 | 8-Φ22 | 495 |
| DN250 | 250 | 405 | 362 | 323.8 | 1.6 | 31 | 12-Φ25 | 622 |
| DN300 | 300 | 485 | 431.8 | 381 | 1.6 | 32 | 12-Φ25 | 698 |
