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。
主要零部件材料
|
NO. |
零件名称 |
A42Y-C |
A42Y-P |
A42Y-R |
DA42Y-P |
|
1 |
阀座 |
2Cr13/1Cr18Ni9Ti |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
ZG1Cr18Ni9Ti |
|
2 |
阀体 |
WCB |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
LCB/ZG1Cr18Ni9Ti |
|
3 |
调节圈 |
2Cr13/1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti |
|
4 |
反冲盘 |
2Cr13/1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti |
|
5 |
阀瓣 |
2Cr13/1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti |
|
6 |
导向套 |
2Cr13/1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti |
|
7 |
阀盖 |
ZG230-450 |
ZG230-450 |
ZG230-450 |
ZG1Cr18Ni9Ti |
|
8 |
50CrVA |
50CrVA包覆氟塑料 |
50CrVA包覆氟塑料 |
50CrVA |
|
|
9 |
阀杆 |
2Cr13 |
1Cr18Ni9Ti/1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti/1Cr18Ni12Mo2Ti |
1Cr18Ni9Ti |
|
10 |
调整螺杆 |
45 |
2Cr13 |
2Cr13 |
2Cr13 |
|
11 |
阀帽 |
ZG200-400 |
ZG200-400 |
ZG200-400 |
ZG230-450 |
|
|
密封面材料 |
堆焊Co基硬质合金 |
|||
外形尺寸和连接尺寸
|
公称压力 |
公称通径 |
尺寸（mm） |
|||
|
do |
L |
L1 |
DN′ |
||
|
1.6 2.5 4.0 |
20 |
10 |
95 |
85 |
25 |
|
25 |
15 |
110 |
95 |
32 |
|
|
32 |
20 |
115 |
100 |
40 |
|
|
40 |
25 |
120 |
110 |
50 |
|
|
50 |
32 |
135 |
120 |
65 |
|
|
65 |
40 |
160 |
125 |
80 |
|
|
80 |
50 |
170 |
135 |
100 |
|
|
100 |
65 |
195 |
175 |
150 |
|
|
125 |
80 |
210 |
190 |
150 |
|
|
150 |
100 |
250 |
210 |
200 |
|
|
200 |
125 |
305 |
260 |
250 |
|
|
250 |
150 |
350 |
320 |
300 |
|
|
300 |
200 |
370 |
350 |
400 |
|
|
350 |
250 |
500 |
450 |
500 |
|
|
400 |
300 |
500 |
450 |
500 |
|
|
500 |
350 |
550 |
500 |
600 |
|
