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A61-160，A61-320适用于工作温度≤200℃的空气、氨、石油气等介质的设备和管路上，A61Y-160P，A61Y-320P型适用于温度≤200℃有腐蚀性的气体或液体的设备和管路上，作为超压保护装置。
| 主要零部件材料 Explanation of materials for main parts |
| NO. |
Name of part |
A61H-C A61Y-C Materials |
A61Y-P Materials |
| 1 |
Union |
20 |
1Cr18Ni9Ti |
| 2 |
Union nut |
35 |
1Cr18Ni9Ti |
| 3 |
Nozzle |
2Cr13 |
1Cr18Ni9Ti |
| 4 |
Body |
35/35CrMoA |
1Cr18Ni9Ti |
| 5 |
Disc |
2Cr13 |
1Cr18Ni9Ti |
| 6 |
Guide |
2Cr13 |
1Cr18Ni9Ti |
| 7 |
Spring |
50CrVA |
50CrVA Coated Teflon |
| 8 |
Stem |
2Cr13 |
2Cr13 |
| 9 |
Bonnet |
ZG230-450 |
1Cr18Ni9Ti |
| 10 |
Adjusting bolt |
45 |
2Cr13 |
| 11 |
Cap |
ZG200-400 |
1Cr18Ni9Ti |
| |
Sealing surface of material |
"Y" Co Depositing stellite, "H" D507 Depositing D507 |
| 外形尺寸和连接尺寸 Dimensions (mm) |
Nominal pressure
PN(MPa) |
Nominal diameter
DN(mm) |
Dimensions |
| do |
D |
D1 |
D2 |
L |
L1 |
H |
| 16 |
10 |
6 |
17 |
14 |
12 |
115 |
135 |
78 |
| 15 |
8 |
22 |
18 |
16 |
115 |
135 |
85 |
| 20 |
10 |
28 |
22 |
20 |
115 |
135 |
135 |
| 25 |
12 |
35 |
26 |
24 |
160 |
165 |
142 |
| 32 |
10 |
6 |
22 |
14 |
12 |
115 |
135 |
80 |
| 15 |
8 |
25 |
17 |
15 |
115 |
135 |
90 |
| 20 |
10 |
30 |
22 |
20 |
115 |
135 |
140 |
| 25 |
12 |
38 |
26 |
24 |
160 |
165 |
148 |
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