A48Y型法兰蒸汽安全阀
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 |
WCB |
ZG1Cr18Ni9Ti |
CF8M |
|
2 |
阀座 |
2Cr13 |
1Cr18Ni9Ti |
316 |
|
3 |
调节圈 |
ZG2Cr13 |
ZG1Cr18Ni9Ti |
0Cr18Ni12Mo2Ti |
|
4 |
反冲盘 |
ZG2Cr13 |
ZG1Cr18Ni9Ti |
316 |
|
5 |
阀瓣 |
2Cr13 |
1Cr18Ni9Ti |
316 |
|
6 |
导向套 |
2Cr13 |
1Cr18Ni9Ti |
0Cr18Ni12Mo2Ti |
|
7 |
阀盖 |
ZG230-450 |
ZG230-450 |
ZG230-450 |
|
8 |
弹簧 |
50CrVA |
50CrVA包覆氟塑料 |
50CrVA包覆氟塑料 |
|
9 |
阀杆 |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
|
10 |
扳手 |
ZG200-400 |
ZG200-400 |
ZG200-400 |
|
11 |
调整螺杆 |
45 |
2Cr13 |
2Cr13 |
|
12 |
保护罩 |
ZG200-400 |
ZG200-400 |
316 |
|
|
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 |
do |
D |
K |
g |
g1 |
b |
f |
f1 |
Z-ød |
DN' |
D1 |
K1 |
g3 |
g2 |
b1 |
f' |
f1' |
Z1-ød1 |
L |
L1 |
≈H |
|
A48Y-16C |
20 |
15 |
105 |
75 |
|
55 |
16 |
2 |
|
4-14 |
25 |
115 |
85 |
|
65 |
16 |
2 |
|
4-14 |
110 |
95 |
411 |
|
25 |
16 |
115 |
85 |
|
65 |
16 |
2 |
|
4-14 |
32 |
140 |
100 |
|
78 |
18 |
2 |
|
4-18 |
110 |
95 |
411 |
|
|
32 |
20 |
140 |
100 |
|
78 |
18 |
2 |
|
4-18 |
40 |
150 |
110 |
|
85 |
18 |
3 |
|
4-18 |
115 |
100 |
411 |
|
|
40 |
25 |
150 |
110 |
|
85 |
18 |
3 |
|
4-18 |
50 |
165 |
125 |
|
100 |
20 |
3 |
|
4-18 |
120 |
110 |
472 |
|
|
50 |
32 |
165 |
125 |
|
100 |
20 |
3 |
|
4-18 |
65 |
185 |
145 |
|
120 |
20 |
3 |
|
4-18 |
135 |
120 |
532 |
|
|
65 |
40 |
185 |
145 |
|
120 |
20 |
3 |
|
4-18 |
80 |
200 |
160 |
|
135 |
20 |
3 |
|
8-18 |
160 |
140 |
556 |
|
|
80 |
50 |
200 |
160 |
|
135 |
20 |
3 |
|
8-18 |
100 |
220 |
180 |
|
155 |
22 |
3 |
|
8-18 |
170 |
135 |
561 |
|
|
100 |
65 |
220 |
180 |
|
155 |
20 |
3 |
|
8-18 |
125 |
250 |
210 |
|
185 |
22 |
3 |
|
8-18 |
195 |
175 |
667 |
|
|
125 |
80 |
250 |
210 |
|
185 |
22 |
3 |
|
8-18 |
150 |
285 |
240 |
|
210 |
24 |
3 |
|
8-23 |
210 |
190 |
857 |
|
|
150 |
100 |
285 |
240 |
|
210 |
24 |
3 |
|
8-23 |
175 |
310 |
270 |
|
240 |
26 |
3 |
|
8-23 |
255 |
230 |
915 |
|
|
200 |
125 |
340 |
295 |
|
265 |
26 |
3 |
|
12-23 |
250 |
405 |
355 |
|
320 |
30 |
3 |
|
12-26 |
300 |
260 |
1073 |
|
|
250 |
150 |
405 |
355 |
|
320 |
30 |
3 |
|
12-26 |
300 |
460 |
410 |
|
375 |
30 |
4 |
|
12-26 |
350 |
320 |
1307 |
|
|
300 |
220 |
460 |
410 |
|
375 |
30 |
4 |
|
12-26 |
400 |
580 |
525 |
|
485 |
36 |
4 |
|
|
|
|
|
