时间：2017-03-30 10:07
H44H-25C 2.5MPa铸钢法兰止回阀主要外形尺寸:
| 公称通径DN | L | D | D1 | D2 | b | Z-Φd | H | WT(Kg) |
| 50 | 230 | 160 | 125 | 100 | 20 | 4-Φ18 | 160 | 22 |
| 65 | 290 | 180 | 145 | 120 | 22 | 8-Φ18 | 175 | 29 |
| 80 | 310 | 195 | 160 | 135 | 22 | 8-Φ18 | 185 | 38 |
| 100 | 350 | 230 | 190 | 160 | 24 | 8-Φ23 | 220 | 61 |
| 125 | 400 | 270 | 220 | 188 | 28 | 8-Φ25 | 248 | 96 |
| 150 | 480 | 300 | 250 | 218 | 30 | 8-Φ25 | 276 | 132 |
| 200 | 550 | 360 | 310 | 278 | 34 | 12-Φ25 | 350 | 213 |
| 250 | 650 | 425 | 370 | 332 | 36 | 12-Φ30 | 410 | 297 |
| 300 | 750 | 485 | 430 | 390 | 40 | 16-Φ30 | 430 | 372 |
| 350 | 850 | 550 | 490 | 448 | 44 | 16-Φ34 | 518 | 415 |
| 400 | 950 | 610 | 550 | 505 | 48 | 16-Φ34 | 560 | 480 |
| 450 | 1025 | 660 | 600 | 555 | 50 | 20-Φ34 | 582 | 610 |
| 500 | 1150 | 730 | 660 | 610 | 52 | 20-Φ41 | 618 | 920 |