Back-flow safety valve
AHN42F-P25C, AHN42F-P18C
This valve is mounted on the liquid effluence pipeline of the pan pump's outlet of the liquefied petroleum gas station, when front pump pressure exceeds the stipulated valve, the valve will open automatically and lead to safe return of the liquid so that ensures the safe operation of equipment and pipelined.
| Nominal diameter
DN(mm) |
Dimension(mm) | ||||||
| D | D1 | D2 | b | Z-Φd | L | H | |
| 25 | 115 | 85 | 65 | 16 | 4-14 | 160 | 325 |
| 32 | 140 | 100 | 78 | 16 | 4-18 | 180 | 335 |
| 40 | 150 | 110 | 85 | 16 | 4-18 | 200 | 236 |
| 50 | 165 | 125 | 100 | 16 | 4-18 | 230 | 266 |
| 65 | 185 | 145 | 120 | 20 | 4-18 | 290 | 430 |
| 80 | 200 | 160 | 135 | 20 | 8-18 | 310 | 490 |
| 100 | 215 | 180 | 155 | 22 | 8-18 | 350 | 548 |
| 150 | 280 | 240 | 210 | 24 | 8-23 | 480 | 706 |
