A27H型安全阀适用于工作温度≤200℃的水、空气、蒸气等介质的设备或管路上。A27Y安全阀适用于工作温度≤200℃有腐蚀性介质的设备或管路上，作为超压保护装置。
A27H-10 A27H-16 A27H-25 A27H-40 A27Y-10P A27Y-16P A27Y-25P A27Y-40P A27Y-10R A27Y-16R A27Y-25R A27Y-40R
| 主要零部件材料 Explanation of materials for main parts |
| NO. |
Name of part |
A27H Materials |
A27W-P Materials |
A27W-R Materials |
| 1 |
Body |
HT350 |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
| 2 |
Nozzle |
35 |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
| 3 |
Adjusting ring |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
| 4 |
Disc |
2Cr13 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
| 5 |
Spring |
50CrVA |
50CrVA Coated Teflon |
50CrVA Coated Teflon |
| 6 |
Stem |
2Cr13 |
2Cr13 |
1Cr18Ni9Ti |
| 7 |
Adjusting bolt |
45 |
2Cr13 |
1Cr18Ni9Ti |
| 8 |
Cap |
ZG200-400 |
ZG200-400 |
1Cr18Ni9Ti |
| |
Sealing surface of material |
D507 Depositing D507 |
Co Depositing stellite |
| 10 |
Adjusting nut |
Q235-A |
2Cr13 |
1Cr18Ni12Mo2Ti |
| |
Sealing surface of material |
"Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body |
| 外形尺寸和连接尺寸 Dimensions (mm) |
Nominal diameter
DN (mm) |
Dimensions (mm) |
| do |
Rc |
L |
L1 |
G |
H |
| 15 |
10 |
1/2" |
40 |
65 |
1/2" |
135 |
| 20 |
15 |
3/4" |
45 |
70 |
3/4" |
140 |
| 25 |
20 |
1" |
45 |
76 |
1" |
155 |
| 32 |
25 |
11/ " |
55 |
85 |
11/ " |
170 |
| 40 |
32 |
11/ " |
55 |
85 |
11/ " |
310 |
| 50 |
40 |
2" |
67 |
100 |
2" |
322 |
| 65 |
50 |
21/ " |
76 |
112 |
21/ " |
344 |
| 80 |
65 |
3" |
110 |
135 |
3" |
395 | |
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