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A42Y-160/320C型安全阀适用于工作温度≤200℃的空气、氮氢混合气等介质的设备和管路上。A42Y-160P/R、A42Y-320P/R型适用于工作温度≤200℃有腐蚀性气体的设备和管路上，作为超压保护装置。
连接法兰按JB/T2769-92的标准。
弹簧式高压安全阀主要连接尺寸
|
型号 |
公称通径 |
do |
d |
M |
D |
K |
Z-φd |
b |
d1 |
C |
M1 |
D1 |
K1 |
Z1-φd |
b1 |
L |
L1 |
≈H |
|
A42Y-160 |
15 |
8 |
20 |
M24×2 |
95 |
60 |
3-18 |
20 |
29 |
37 |
M42×2 |
115 |
80 |
4-18 |
22 |
95 |
100 |
263 |
|
20 |
10 |
27 |
M33×2 |
105 |
68 |
3-18 |
20 |
29 |
37 |
M42×2 |
115 |
80 |
4-18 |
22 |
95 |
100 |
263 |
|
|
25 |
12 |
28 |
M33×2 |
105 |
68 |
3-18 |
20 |
40 |
47 |
M52×2 |
165 |
115 |
6-26 |
28 |
130 |
135 |
314 |
|
|
32 |
15 |
37 |
M42×2 |
115 |
80 |
4-18 |
22 |
50 |
59 |
M64×3 |
165 |
115 |
6-26 |
32 |
150 |
150 |
390 |
|
|
40 |
20 |
47 |
M52×2 |
165 |
115 |
6-26 |
28 |
65 |
74 |
M80×3 |
200 |
145 |
6-29 |
40 |
180 |
165 |
495 |
|
|
50 |
25 |
59 |
M64×3 |
165 |
115 |
6-26 |
32 |
80 |
94 |
M100×3 |
225 |
170 |
6-33 |
45 |
190 |
190 |
510 |
|
|
A42Y-320 |
15 |
8 |
27 |
M33×2 |
105 |
68 |
3-18 |
20 |
29 |
37 |
M42×2 |
115 |
80 |
4-18 |
22 |
95 |
100 |
263 |
|
20 |
10 |
32 |
M36×2 |
110 |
75 |
3-18 |
22 |
29 |
37 |
M42×2 |
115 |
80 |
4-18 |
22 |
95 |
100 |
263 |
|
|
25 |
12 |
35 |
M42×2 |
115 |
80 |
4-18 |
22 |
40 |
47 |
M52×2 |
165 |
115 |
6-26 |
28 |
130 |
135 |
314 |
|
|
32 |
14 |
41 |
M48×2 |
135 |
95 |
4-22 |
25 |
50 |
59 |
M64×3 |
165 |
115 |
6-26 |
32 |
150 |
150 |
390 |
|
|
40 |
18 |
58 |
M64×3 |
165 |
115 |
6-26 |
32 |
65 |
74 |
M80×3 |
200 |
145 |
6-29 |
40 |
180 |
165 |
495 |
|
|
50 |
23 |
70 |
M80×3 |
200 |
145 |
6-29 |
40 |
80 |
94 |
M100×3 |
225 |
170 |
6-33 |
45 |
190 |
190 |
510 |
|
|
A42Y-400 |
32 |
15 |
41 |
M48×2 |
135 |
95 |
4-22 |
25 |
50 |
59 |
M64×3 |
165 |
115 |
6-26 |
32 |
150 |
150 |
397 |
