A42Y-160/320弹簧全启封闭式高压安全阀适用于工作温度≤200℃空气、氮氢混合气等介质的设备或管路上。A42Y-160P/320P、A42Y-160R/320R弹簧全启封闭式高压安全阀适用于工作温度≤200℃有腐蚀性介质的设备或管路上，作为超压保护装置。连接法兰按JB/T2769-92的标准。NO.零件名称A42Y-160A42Y-320材料A42Y-160PA42Y-320P材料A42Y-160RA42Y-320R材料1法兰35/35CrMoA2Cr131Cr18Ni12Mo2Ti2阀座2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti3阀体401Cr18Ni9Ti1Cr18Ni12Mo2Ti4调节圈2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti5阀瓣2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti6反冲盘2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti7导向套2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti8阀盖ZG230-450ZG230-450ZG230-4509阀杆2Cr131Cr18Ni9Ti1Cr18Ni9Ti10弹簧50CrVA50CrVA包覆氟塑料50CrVA包覆氟塑料11调整螺杆452Cr132Cr1312阀帽ZG200-400ZG200-400ZG200-400密封面材料堆焊Co基硬质合金)