A42H/Y spring full open closed safety valve
A42Y-C spring full-open closed safety valve is suitable for equipment and pipelines with working temperature ≤300℃ for air, petroleum gas, liquid and other media. The A42Y-P spring full-open closed safety valve and the A42Y-R type are suitable for equipment and pipelines with corrosive media at a ...
A42Y-C spring full-open closed safety valve is suitable for equipment and pipelines with working temperature ≤300℃ for air, petroleum gas, liquid and other media. The A42Y-P spring full-open closed safety valve and the A42Y-R type are suitable for equipment and pipelines with corrosive media at a working temperature of ≤200℃, as overpressure protection devices.
Main materials of A42H/Y spring full-open closed safety valve
| NO. | Name of part | A42Y-C/KA42Y-C Materials | A42Y-P/KA42Y-P Materials | A42Y-R Materials | DA42Y-P Materials |
| 1 | Valve seat Nozzle | 2Cr13/1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | ZG1Cr18Ni9Ti |
| 2 | Body | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | LCB/ZG1Cr18Ni9Ti |
| 3 | Adjusting ring | 2Cr13 /1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 4 | Disc holder | 2Cr13 /1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 5 | Disc | 2Cr13 /1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 6 | Guide sleeve | 2Cr13 /1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 7 | Bonnet | ZG230-450 | ZG230-450 | ZG230-450 | ZG1Cr18Ni9Ti |
| 8 | Spring | 50CrVA | 50CrVA Coated Teflon | 50CrVA Coated Teflon | 50CrVA |
| 9 | Stem | 2Cr13 | 1Cr18Ni9Ti/1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti/1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 10 | Adjusting bolt | 45 | 2Cr13 | 2Cr13 | 2Cr13 |
| 11 | Cap | ZG200-400 | ZG200-400 | ZG200-400 | ZG230-450 |
