主要特点
A42Y型弹簧全启式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。上海一环生产的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。
适用范围
城建、化工、冶金、石油、制药、食品、饮料、环保
产品概述
弹簧全启式安全阀 结构图1 |
A42Y-16C/25P/40R |
弹簧全启式安全阀 结构图2 |
弹簧全启式安全阀外形及连接尺寸
| 公称通径 Nominal diameter DN(mm) | 尺寸 Dimensions (mm) | |||
| DO | L | L1 | DN’ | |
| 25 | 15 | 110 | 95 | 32 |
| 32 | 20 | 115 | 100 | 40 |
| 40 | 25 | 120 | 110 | 50 |
| 50 | 32 | 165 | 120 | 65 |
| 65 | 40 | 160 | 135 | 80 |
| 80 | 50 | 170 | 135 | 100 |
| 100 | 65 | 195 | 175 | 125 |
| 125 | 80 | 210 | 190 | 150 |
| 150 | 100 | 255 | 230 | 175 |
| 200 | 125 | 300 | 260 | 250 |
| 250 | 150 | 350 | 320 | 300 |
| 300 | 200 | 380 | 350 | 400 |
| 350 | 300 | 500 | 450 | 500 |
| 400 | 350 | 500 | 450 | 500 |
弹簧全启式安全阀主要零部件材料
| 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 stellite | ||||
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