A42F/AH42F back-flow safety valve
The A42F/AH42F back-flow safety valve is suitable for equipment and pipelines of liquefied petroleum gas and similar non-corrosive media with a working temperature of -29-+80℃. A42F/AH42F safety return valve is suitable for the liquid phase return of the LPG tank pump outlet In the pipeline, when t...
The A42F/AH42F back-flow safety valve is suitable for equipment and pipelines of liquefied petroleum gas and similar non-corrosive media with a working temperature of -29-+80℃. A42F/AH42F safety return valve is suitable for the liquid phase return of the LPG tank pump outlet In the pipeline, when the pressure in the equipment and pipeline exceeds the allowable value, the valve will automatically open, and then the full amount will be discharged. When the pressure drops to the specified value, the valve will automatically close to ensure the safe operation of the equipment.
Material of main parts of A42F/AH42F safety return valve
| NO. | Name of part | AH42F-C A42F-C Materials |
| 1 | Valve seat Nozzle | 2Cr13 |
| 2 | Body | WCB |
| 3 | Adjusting ring | 2Cr13 |
| 4 | Disc holder | 2Cr13 |
| 5 | Disc | 2Cr13+PTFE |
| 6 | Guide sleeve | 2Cr13 |
| 7 | Bonnet | ZG230-450 |
| 8 | Spring | 50CrVA |
| 9 | Stem | 2Cr13 |
| 10 | Adjusting bolt | 45 |
| 11 | Bonnet Cap | ZG200-400 |
