高温高压安全阀 HFA48Y-16C，HFA48Y-100I，HFA48Y-40，HFA48sB-100I，


1
阀体 Body
WCB
ZG1Cr5Mo
ZG15Cr1Mo1V


2
阀座 Nozzle
2Cr13
1Cr18Ni9Ti
12Cr1MoVA


3
调节圈 Adjusting ring
2Cr13
1Cr18Ni9Ti
1Cr18Ni9Ti


4
阀瓣 Disc
2Cr13
17-4PH
17-7PH

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