|
A44Y、A48Y锅炉专用安全阀适用于工作温度≤350℃的蒸汽、空气等介质的设备或管路上。作为超压保护装置。适用于工作温度≤350℃的蒸汽、空气等介质的设备或管路上。作为超压保护装置。是一种由进口静压开启的自动泄压防护装置,它是压力容器最为重要的安全附件之一,它的功能是：当容器内压力超过某一定值时,依靠介质自身的压力自动开启阀门,迅速排出一定数量的介质。当容器内的压力降到允许值时,阀又自动关闭,使容器内压力始终低于允许压力的上限,自动防止因超压而可能出现的事故,所以安全阀又被称为压力容器的最终保护装置。
锅炉安全阀主要零部件材料:
|
NO |
零件名称 |
材料 |
|
1 |
阀体 |
WCB |
|
2 |
阀座 |
ZG2Cr13 |
|
3 |
调节圈 |
ZG2Cr13 |
|
4 |
阀瓣 |
2Cr13 |
|
5 |
导向套 |
2Cr13 |
|
6 |
阀盖 |
ZG230-450 |
|
7 |
弹簧 |
50CrVA |
|
8 |
阀杆 |
2Cr13 |
|
9 |
扳手 |
ZG200-400 |
|
10 |
调整螺杆 |
45 |
|
11 |
保护罩 |
ZG200-400 |
|
|
密封面材料 |
"H"堆焊D507,"Y"堆焊Co基硬质合金 |
锅炉安全阀主要连接尺寸
|
型号 |
公称通径 |
do |
D |
K |
g |
g1 |
b |
f |
f1 |
Z-?d |
f |
L |
L1 |
H |
|
A48Y-16C A44Y-16C A44Y-16P A44Y-16R |
20 |
15 |
105 |
75 |
|
55 |
16 |
2 |
|
4-14 |
2 |
110 |
95 |
411 |
|
25 |
16 |
115 |
85 |
|
65 |
16 |
2 |
|
4-14 |
2 |
110 |
95 |
411 |
|
32 |
20 |
140 |
100 |
|
78 |
18 |
2 |
|
4-18 |
3 |
115 |
100 |
411 |
|
40 |
25 |
150 |
110 |
|
85 |
18 |
3 |
|
4-18 |
3 |
120 |
110 |
472 |
|
50 |
32 |
165 |
125 |
|
100 |
20 |
3 |
|
4-18 |
3 |
135 |
120 |
532 |
|
65 |
40 |
185 |
145 |
|
120 |
20 |
3 |
|
4-18 |
3 |
160 |
140 |
556 |
|
80 |
50 |
200 |
160 |
|
135 |
20 |
3 |
|
8-18 |
3 |
170 |
135 |
561 |
|
100 |
65 |
220 |
180 |
|
155 |
20 |
3 |
|
8-18 |
3 |
195 |
175 |
667 |
|
125 |
80 |
250 |
210 |
|
185 |
22 |
3 |
|
8-18 |
3 |
210 |
190 |
857 |
|
150 |
100 |
285 |
240 |
|
210 |
24 |
3 |
|
8-23 |
3 |
255 |
230 |
915 |
|
200 |
125 |
340 |
295 |
|
265 |
26 |
3 |
|
12-23 |
3 |
300 |
260 |
1073 |
|
250 |
150 |
405 |
355 |
|
320 |
30 |
3 |
|
12-26 |
4 |
350 |
320 |
1307 |
|
300 |
220 |
460 |
410 |
|
375 |
30 |
4 |
|
12-26 |
4 |
370 |
350 |
1233 |
|
350 |
250 |
520 |
470 |
|
435 |
34 |
4 |
|
16-26 |
4 |
500 |
450 |
1711 |
|
400 |
280 |
580 |
525 |
|
485 |
36 |
4 |
|
16-30 |
4 |
500 |
450 |
1780 |
|
A48Y-25
A44Y-25
A44Y-25P A44Y-25R |
20 |
15 |
105 |
75 |
|
55 |
16 |
2 |
|
4-14 |
2 |
110 |
95 |
411 |
|
25 |
16 |
115 |
85 |
|
65 |
16 |
2 |
|
4-14 |
2 |
110 |
95 |
411 |
|
32 |
20 |
140 |
100 |
|
78 |
18 |
2 |
|
4-18 |
3 |
115 |
100 |
411 |
|
40 |
25 |
150 |
110 |
|
85 |
18 |
3 |
|
4-18 |
3 |
120 |
110 |
472 |
|
50 |
32 |
165 |
125 |
|
100 |
20 |
3 |
|
4-18 |
3 |
135 |
120 |
532 |
|
65 |
40 |
185 |
145 |
|
120 |
22 |
3 |
|
8-18 |
3 |
160 |
140 |
556 |
|
80 |
50 |
200 |
160 |
|
135 |
22 |
3 |
|
8-18 |
3 |
170 |
135 |
561 |
|
100 |
65 |
230 |
190 |
|
160 |
24 |
3 |
|
8-23 |
3 |
195 |
175 |
667 |
|
125 |
80 |
270 |
220 |
|
188 |
28 |
3 |
|
8-26 |
3 |
210 |
190 |
857 |
|
150 |
100 |
300 |
250 |
|
218 |
30 |
3 |
|
8-26 |
3 |
255 |
230 |
915 |
|
200 |
125 |
360 |
310 |
|
278 |
34 |
3 |
|
12-26 |
3 |
300 |
260 |
1073 |
|
250 |
150 |
425 |
370 |
|
332 |
36 |
3 |
|
12-30 |
4 |
350 |
320 |
1307 |
|
300 |
220 |
485 |
430 |
|
390 |
40 |
4 |
|
16-30 |
4 |
370 |
350 |
1233 |
|
350 |
250 |
555 |
490 |
|
448 |
44 |
4 |
|
16-34 |
4 |
500 |
450 |
1711 |
|
400 |
280 |
620 |
550 |
|
505 |
48 |
4 |
|
16-36 |
4 |
500 |
450 |
1780 | |
