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弹簧全启封闭式安全阀A42Y-C型适用于工作温度≤300℃空气、石油气、液体等介质的设备和管路上。A42Y-P型及A42Y-R型适用于工作温度≤200℃有腐蚀性的介质的设备和管路上，作为超压保护装置。连接法兰标准按JB/T……-94系列1。≥6.4MPa按JB/T……-94系列2。
系列型号
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A42Y-16C
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A42Y-16P
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A42Y-16R
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KA42Y-16
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DA42Y-16C/P
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A42Y-25
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A42Y-25P
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A42Y-25R
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KA42Y-25（P）
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DA42Y-25P
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A42Y-40
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A42Y-40P
|
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A42Y-40R
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KA42Y-40
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DA42Y-40P
|
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A42Y-64
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A42Y-64P
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A42Y-64R
|
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KA42Y-64
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DA42Y-64P
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A42Y-100
|
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A42Y-100
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PA42Y-100R
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KA42Y-100
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DA42Y-100P
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主要零件材料
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NO.
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零件名称
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A42Y-C/KA42Y-C材料
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A42Y-P/KA42Y-P材料
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A42Y-R材料
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DA42Y-P材料
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1
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阀座
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2Cr13/1Cr18Ni9Ti
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ZG1Cr18Ni9Ti
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ZG1Cr18Ni12Mo2Ti
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ZG1Cr18Ni9Ti
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2
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阀体
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WCB
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ZG1Cr18Ni9Ti
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ZG1Cr18Ni12Mo2Ti
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LCB/ZG1Cr18Ni9Ti
|
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3
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调节圈
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2Cr13/1Cr18Ni9Ti
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1Cr18Ni9Ti
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1Cr18Ni12Mo2Ti
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1Cr18Ni9Ti
|
|
4
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反冲盘
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2Cr13/1Cr18Ni9Ti
|
1Cr18Ni9Ti
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1Cr18Ni12Mo2Ti
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1Cr18Ni9Ti
|
|
5
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阀瓣
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2Cr13/1Cr18Ni9Ti
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1Cr18Ni9Ti
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1Cr18Ni12Mo2Ti
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1Cr18Ni9Ti
|
|
6
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导向套
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2Cr13/1Cr18Ni9Ti
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1Cr18Ni9Ti
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1Cr18Ni12Mo2Ti
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1Cr18Ni9Ti
|
|
7
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阀盖
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ZG230-450
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ZG230-450
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ZG230-450
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ZG1Cr18Ni9Ti
|
|
8
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弹簧
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50CrVA
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50CrVA包覆氟塑料
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50CrVA包覆氟塑料
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50CrVA
|
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9
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阀杆
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2Cr13
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1Cr18Ni9Ti/1Cr18Ni12Mo2Ti
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1Cr18Ni9Ti/1Cr18Ni12Mo2Ti
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1Cr18Ni9Ti
|
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10
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调整螺杆
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45
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2Cr13
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2Cr13
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2Cr13
|
|
11
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阀帽
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ZG200-400
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ZG200-400
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ZG200-400
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ZG230-450
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密封面材料
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堆焊Co基硬质合金
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