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带扳手弹簧全启式安全阀适用范围
A48Y型适用于工作温度≤350℃的蒸汽、空气等介质的设备和管路上，A44Y适用于工作温度≤300℃的空气、石油等介质的设备和管路上作为超压保护装置，连接法兰标准按PN<6.4MPa按JB/T-94系列1标准,PN≥6.4MPa按JB/T-94系列2标准。
带扳手弹簧全启式安全阀产品型号 Type of the products
| A48Y-16C |
A44Y-16C |
A44Y-16P |
A44Y-16R |
| A48Y-25 |
A44Y-25 |
A44Y-25P |
A44Y-25R |
| A48Y-40 |
A44Y-40 |
A44Y-40P |
A44Y-40R |
| A48Y-64 |
A44Y-64 |
A44Y-64P |
A44Y-64R |
| A48Y-100 |
A44Y-100 |
A44Y-100P |
A44Y-100R |
带扳手弹簧全启式安全阀主要零部件材料 Meterial for main parts
| 序号No. |
零件名称 Name of part |
A48Y-C A44Y-C材料 Materials |
A44Y-P 材料 Materials |
A44Y- R 材料 Materials |
| 1 |
阀体 Body |
WCB |
ZG1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
| 2 |
阀座 Nozzle |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
| 3 |
调节圈 Adjusting ring |
ZG2Cr13 |
ZG1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
| 4 |
反冲盘 Disc holde |
ZG2Cr13 |
ZG1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
| 5 |
阀瓣 Disc |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
| 6 |
导向套 Guide sleeve |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
| 7 |
阀盖 Bonnet |
ZG230-450 |
ZG230-450 |
ZG230-450 |
| 8 |
弹簧 Spring |
50CrVA |
50CrVA包覆氟塑料 Coated Teflon |
50CrVA包覆氟塑料 Coated Teflon |
| 9 |
阀杆 Stem |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
| 10 |
扳手 Lever |
ZG200-400 |
ZG200-400 |
ZG200-400 |
| 11 |
调整螺杆 Adjusting bolt |
45 |
2Cr13 |
2Cr13 |
| 12 |
保护罩 Cap |
ZG200-400 |
ZG200-400 |
316 |
|
密封面材料 Sealing surface of material |
堆焊Co基硬质合金Depositing stellite |
带扳手弹簧全启式安全阀主要连接尺寸（mm） Size of main connection
| 公称通径DN Nominal Diameter |
尺寸（mm） Size |
| do |
D |
K |
g |
g1 |
b |
f |
f1 |
Z-￠d |
DN’ |
D1 |
K1 |
g3 |
g2 |
b1 |
f’ |
f1’ |
Z1-￠d1 |
L |
L1 |
≈H |
| A48Y-16C A44Y-16C A44Y-16P A44Y-16R |
| 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 |
155 |
661 |
| 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 |
- |
16-￠30 |
370 |
350 |
1233 |
| 350 |
250 |
520 |
470 |
- |
435 |
34 |
4 |
- |
16-￠26 |
500 |
715 |
650 |
- |
608 |
44 |
4 |
- |
20-￠34 |
500 |
450 |
1711 |
| 400 |
280 |
580 |
525 |
- |
485 |
36 |
4 |
- |
16-￠30 |
500 |
715 |
650 |
- |
608 |
44 |
4 |
- |
20-￠34 |
500 |
450 | | 
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