弹簧全启封闭式安全阀(A42Y)剖解图
弹簧全启封闭式安全阀(A42Y)说明
A42Y-C型弹簧全启封闭式安全阀（碳钢安全阀）适用于工作温度≤300℃空气、石油气、液体等介质的设备和管路上。A42Y-P型及A42Y-R型（不锈钢安全阀）适用于工作温度≤200℃有腐蚀性的介质的设备和管路上，作为超压保护装置。连接法兰标准按JB/T……-94系列1。≥6.4MPa按JB/T……-94系列2。
弹簧全启封闭式安全阀(A42Y)主要零部件材料:
| NO. | 零件名称 | A42Y-C/KA42Y-C材料 | A42Y-P/KA42Y-P材料 | A42Y-R材料 | DA42Y-P材料 |
| 1 | 阀座 | 2Cr13/1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | ZG1Cr18Ni9Ti |
| 2 | 阀体 | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | LCB/ZG1Cr18Ni9Ti |
| 3 | 调节圈 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 4 | 反冲盘 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 5 | 阀瓣 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 6 | 导向套 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 7 | 阀盖 | ZG230-450 | ZG230-450 | ZG230-450 | ZG1Cr18Ni9Ti |
| 8 | 弹簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 | 50CrVA |
| 9 | 阀杆 | 2Cr13 | 1Cr18Ni9Ti/1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti/1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 10 | 调整螺杆 | 45 | 2Cr13 | 2Cr13 | 2Cr13 |
| 11 | 阀帽 | ZG200-400 | ZG200-400 | ZG200-400 | ZG230-450 |
| | 密封面材料 | 堆焊Co基硬质合金 |
系列型号
| A42Y-16C | A42Y-16P | A42Y-16R |
| KA42Y-16 | DA42Y-16C/P | A42Y-25 |
| A42Y-25P | A42Y-25R | KA42Y-25（P） |
| DA42Y-25P | A42Y-40 | A42Y-40P |
| A42Y-40R | KA42Y-40 | DA42Y-40P |
| A42Y-64 | A42Y-64P | A42Y-64R |
| KA42Y-64 | DA42Y-64P | A42Y-100 |
| A42Y-100 | PA42Y-100R | KA42Y-100 |
| DA42Y-100P |
A42Y-25C DN50,A42Y-25C DN65,A42Y-25C DN80,A42Y-25C DN100,封闭弹簧全启式安全阀
A42Y-25C DN125,A42Y-25C DN150,A42Y-25C DN200,A42Y-25C DN250,封闭弹簧全启式安全阀
A42Y-25C DN300,封闭弹簧全启式安全阀
A42Y-25R DN20,A42Y-25R DN25,A42Y-25R DN32,A42Y-25R DN40,封闭弹簧全启式安全阀
A42Y-25R DN50,A42Y-25R DN65,A42Y-25R DN80,A42Y-25R DN100,封闭弹簧全启式安全阀
A42Y-25R DN125,A42Y-25R DN150,A42Y-25R DN200,A42Y-25R DN250,封闭弹簧全启式安全阀
A42Y-25R DN300,封闭弹簧全启式安全阀
A42Y-25P DN20,A42Y-25P DN25,A42Y-25P DN32,A42Y-25P DN40,封闭弹簧全启式安全阀
A42Y-25P DN50,A42Y-25P DN65,A42Y-25P DN80,A42Y-25P DN100,封闭弹簧全启式安全阀
A42Y-25P DN125,A42Y-25P DN150,A42Y-25P DN200,A42Y-25P DN250,封闭弹簧全启式安全阀
A42Y-25P DN300,封闭弹簧全启式安全阀
KA42Y-25C DN20,KA42Y-25C DN25,KA42Y-25C DN32,KA42Y-25C DN40,封闭弹簧全启式安全阀
KA42Y-25C DN50,KA42Y-25C DN65,KA42Y-25C DN80,KA42Y-25C DN100,封闭弹簧全启式安全阀
KA42Y-25C DN125,KA42Y-25C DN150,KA42Y-25C DN200,KA42Y-25C DN250,封闭弹簧全启式安全阀
KA42Y-25C DN300,封闭弹簧全启式安全阀
DA42Y-25C DN20,DA42Y-25C DN25,DA42Y-25C DN32,DA42Y-25C DN40,封闭弹簧全启式安全阀
DA42Y-25C DN50,DA42Y-25C DN65,DA42Y-25C DN80,DA42Y-25C DN100,封闭弹簧全启式安全阀
DA42Y-25C DN125,DA42Y-25C DN150,DA42Y-25C DN200,DA42Y-25C DN250,封闭弹簧全启式安全阀
DA42Y-25C DN300,封闭弹簧全启式安全阀
DA42Y-25P DN20,DA42Y-25P DN25,DA42Y-25P DN32,DA42Y-25P DN40,封闭弹簧全启式安全阀
DA42Y-25P DN50,DA42Y-25P DN65,DA42Y-25P DN80,DA42Y-25P DN100,封闭弹簧全启式安全阀
DA42Y-25P DN125,DA42Y-25P DN150,DA42Y-25P DN200,DA42Y-25P DN250,封闭弹簧全启式安全阀
DA42Y-25P DN300,封闭弹簧全启式安全阀