带扳手弹簧全启式安全阀适用范围 A48Y型安全阀适用于工作温度≤350℃的蒸汽、空气等介质的设备和管路上，A44Y适用于工作温度≤300℃的空气、石油等介质的设备和管路上作为超压保护装置，连接法兰标准按PN<6.4MPa按JB/T-94系列1标准,PN≥6.4MPa按JB/T-94系列2标准。 带扳手弹簧全启式安全阀产品型号 Type of the products A48Y-16C A44Y-16C A44Y-16P A44Y-16R A48Y-25 A44Y-25 A44Y-25P A44Y-25R A48Y-40 A44Y-40 A44Y-40P A44Y-40R A48Y-64 A44Y-64 A44Y-64P A44Y-64R A48Y-100 A44Y-100 A44Y-100P A44Y-100R 带扳手弹簧全启式安全阀主要零部件材料 Meterial for main parts 序号No. 零件名称 Name of part A48Y-C A44Y-C材料 Materials A44Y-P 材料 Materials A44Y- R 材料 Materials 1 阀体 Body WCB ZG1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 2 阀座 Nozzle 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 3 调节圈 Adjusting ring ZG2Cr13 ZG1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 4 反冲盘 Disc holde ZG2Cr13 ZG1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 5 阀瓣 Disc 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 6 导向套 Guide sleeve 2Cr13 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 7 阀盖 Bonnet ZG230-450 ZG230-450 ZG230-450 8 弹簧 Spring 50CrVA 50CrVA包覆氟塑料 Coated Teflon 50CrVA包覆氟塑料 Coated Teflon 9 阀杆 Stem 2Cr13 1Cr18Ni9Ti 1Cr18Ni9Ti 10 扳手 Lever ZG200-400 ZG200-400 ZG200-400 11 调整螺杆 Adjusting bolt 45 2Cr13 2Cr13 12 保护罩 Cap ZG200-400 ZG200-400 316 密封面材料 Sealing surface of material 堆焊Co基硬质合金Depositing stellite