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A44Y、A48Y鍋爐專用安全閥適用于工作溫度≤350℃的蒸汽、空氣等介質(zhì)的設(shè)備或管路上。作為超壓保護(hù)裝置。適用于工作溫度≤350℃的蒸汽、空氣等介質(zhì)的設(shè)備或管路上。作為超壓保護(hù)裝置。是一種由進(jìn)口靜壓開啟的自動(dòng)泄壓防護(hù)裝置,它是壓力容器最為重要的安全附件之一,它的功能是：當(dāng)容器內(nèi)壓力超過某一定值時(shí),依靠介質(zhì)自身的壓力自動(dòng)開啟閥門,迅速排出一定數(shù)量的介質(zhì)。當(dāng)容器內(nèi)的壓力降到允許值時(shí),閥又自動(dòng)關(guān)閉,使容器內(nèi)壓力始終低于允許壓力的上限,自動(dòng)防止因超壓而可能出現(xiàn)的事故,所以安全閥又被稱為壓力容器的最終保護(hù)裝置。
鍋爐安全閥主要零部件材料:
|
NO |
零件名稱 |
材料 |
|
1 |
閥體 |
WCB |
|
2 |
閥座 |
ZG2Cr13 |
|
3 |
調(diào)節(jié)圈 |
ZG2Cr13 |
|
4 |
閥瓣 |
2Cr13 |
|
5 |
導(dǎo)向套 |
2Cr13 |
|
6 |
閥蓋 |
ZG230-450 |
|
7 |
彈簧 |
50CrVA |
|
8 |
閥桿 |
2Cr13 |
|
9 |
扳手 |
ZG200-400 |
|
10 |
調(diào)整螺桿 |
45 |
|
11 |
保護(hù)罩 |
ZG200-400 |
|
|
密封面材料 |
"H"堆焊D507,"Y"堆焊Co基硬質(zhì)合金 |
鍋爐安全閥主要連接尺寸
|
型號(hào) |
公稱通徑 |
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 | |
