连接形式：

法兰

材质：

铸钢

阀瓣开启高度：

全启式安全阀

结构形式：

弹簧式

SKU:带扳手弹簧全启式安全阀(A44Y)

Description:     系列 Series A48Y-16C A48Y-25 A48Y-40 A48Y-64 A48Y-100 A44Y-16C A44Y-25 A44Y-40 A44Y-64 A44Y-100 A44Y-16P A44Y-25P A44Y-40P A44Y-64P A44Y-100P A44Y-16R A44Y-25R A44Y-40R A44Y-64R A44Y-100R  A48Y型适用于工作温度≤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、石油等介质的设备或管路上，作为超压保护装置。连接法兰标准PN<6.4MPa按JB/T-94系例1。PN≥6.4MPa按JB/T-94系列2标准。         A48Y type are usedfor the equipment and pipeline of the with steam and air etc  medium what the working temperature  are less than 350 . A44Y type are used for the equi-pment and pipeline of the with air and petroleum gas medium what the working temperature are less than 300 , Take for extra pre-ssure protection devices. Flange  connecting dimensions of comply with Standard series first of JB/T-94 when the pressure less than 6.4MPa, comply with Standard series  two of  JB/T-94 when more than 6.4MPa. 主要零部件材料 Materials for main parts NO. 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 CF8M 2 阀        座Nozzle 2Cr13 1Cr18Ni9Ti 316 3 调  节  圈 Adjusting ring ZG2Cr13 ZG1Cr18Ni9Ti 0Cr18Ni12Mo2Ti 4 反  冲  盘 Disc holder ZG2Cr13 ZG1Cr18Ni9Ti 316 5 阀        瓣Disc 2Cr13 1Cr18Ni9Ti 316 6 导  向  套Guide sleeve 2Cr13 1Cr18Ni9Ti 0Cr18Ni12Mo2Ti 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 1Cr18Ni12Mo2Ti 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