A48Y法兰蒸汽安全阀适于温度《350℃的蒸汽、空气等介质的设备和管 路上，作为超压保护装置，当设备和管路内压力超过允许值时，阀门自动开启，继而全量排放；当压力降低到规定值时，阀门自动关闭，保证设备和管路的安全运行。
主要零部件材料
NO.零件名称A48Y-C A44Y-C 材料A44Y-P材料A44Y-R材料1阀体WCBZG1Cr18Ni9TiCF8M2阀座2Cr131Cr18Ni9Ti3163调节圈ZG2Cr13ZG1Cr18Ni9Ti0Cr18Ni12Mo2Ti4反冲盘ZG2Cr13ZG1Cr18Ni9Ti3165阀瓣2Cr131Cr18Ni9Ti3166导向套2Cr131Cr18Ni9Ti0Cr18Ni12Mo2Ti7阀盖ZG230-450ZG230-450ZG230-4508弹簧50CrVA50CrVA包覆氟塑料50CrVA包覆氟塑料9阀杆2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti10扳手ZG200-400ZG200-400ZG200-40011调整螺杆452Cr132Cr1312保护罩ZG200-400ZG200-400316
密封面材料堆焊Co基硬质合金
外形尺寸和连接尺寸
型号公称通径doDKgg1bff1Z-ødDN'D1K1g3g2b1f'f1'Z1-ød1LL1≈HA48Y-16C201510575
55162
4-142511585
65162
4-1411095411251611585
65162
4-1432140100
78182
4-18110954113220140100
78182
4-1840150110
85183
4-181151004114025150110
85183
4-1850165125
100203
4-181201104725032165125
100203
4-1865185145
120203
4-181351205326540185145
120203
4-1880200160
135203
8-181601405568050200160
135203
8-18100220180
155223
8-1817013556110065220180
155203
8-18125250210
185223
8-1819517566712580250210
185223
8-18150285240
210243
8-23210190857150100285240
210243
8-23175310270
240263
8-23255230915200125340295
26526