A42Y-25C DN250 DN300气体安全阀用途
A42Y-25C DN250 DN300气体安全阀适用于工作温度≤300℃的空气、石油气、液体等介质的设备和管路上。A42-P型及A42Y-R型弹簧全启式安全阀适于工作温度≤200℃有腐蚀性的介质的设备和管路上。A48Y型弹簧全启式安全阀适于工作温度≤350℃的蒸气、空气等介质设备和管路上,作为超压保护装置。
主要零部件材料
NO. | 零件名称 Name of part | A42Y-C A48Y-C KA42Y-C 材料 Materials | A42Y-P/K A42Y-P 材料 Materials | A42Y-R 材料 Materials | DA42Y-P 材料 Materials |
1 | 阀座 Nozzle | 2Cr13/1Cr18Ni9Ti | ZG1Cr18Ni9Ti | 2G1Cr18Ni12Mo2Ti | ZG1Cr18Ni9Ti |
2 | 阀体 Body | WCB | ZG1Cr18Ni9Ti | 2G1Cr18Ni12Mo2Ti | LCB/ ZG1Cr18Ni9Ti |
3 | 调节圈 Adjusting ring | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
4 | 反冲盘 Disc holder | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
5 | 阀瓣 Disc | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
6 | 导向套 Guide sleeve | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
7 | 阀盖 Bonnet | ZG230-450 | ZG230-450 | ZG230-450 | ZG1Cr18Ni9Ti |
8 | 弹簧Spring | 50CrVA | 50CrVA包覆氟塑料 Coated Teflon | 50CrVA包覆氟塑料 Coated Teflon | 50CrVA |
9 | 阀杆Stem | 2Cr13 | 1Cr18Ni9Ti/1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti/1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
10 | 调整螺杆Adjusting bolt | 45 | 2Cr13 | 2Cr13 | 2Cr13 |
11 | 阀帽Cap | ZG200-400 | ZG200-400 | ZG200-400 | ZG230-450 |
密封面材料 Sealing surface of material | 堆焊Co基硬质合金 Depositing slite |
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