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A40Y带散热器弹簧全启式安全阀适用于工作温度≤400℃ "Times New Roman"">、A40Y弹簧高温安全阀≤450℃ "Times New Roman"">的空气、水、氮氢混合气等介质的设备或管路上，A40Y-P "Times New Roman"">不锈钢带散热器弹簧全启式安全阀适用于工作温度≤300℃有腐蚀性介质的设备或管路上，作为超压保护装置。
A40Y "Times New Roman"">带散热器弹簧全启式安全阀外形尺寸和连接尺寸
|
mso-hansi-font-family:"Times New Roman"">型号 |
mso-hansi-font-family:"Times New Roman"">公称通径 |
do |
D |
K |
g |
g1 |
b |
f |
f1 |
Z-?d |
DN' |
D1 |
K1 |
g3 |
g2 |
b1 |
f' |
f1' |
z1-?d1 |
L |
L1 |
mso-hansi-font-family:"Times New Roman"">≈H |
|
SA40Y-16C |
20 |
15 |
105 |
75 |
|
55 |
16 |
2 |
|
4-14 |
25 |
115 |
85 |
|
65 |
16 |
2 |
|
4-14 |
110 |
95 |
518 |
|
25 |
16 |
115 |
85 |
|
65 |
16 |
2 |
|
4-14 |
32 |
140 |
100 |
|
78 |
18 |
2 |
|
4-18 |
110 |
95 |
518 |
|
|
32 |
20 |
140 |
100 |
|
78 |
18 |
2 |
|
4-18 |
40 |
150 |
110 |
|
85 |
18 |
3 |
|
4-18 |
115 |
100 |
518 |
|
|
40 |
25 |
150 |
110 |
|
85 |
18 |
3 |
|
4-18 |
50 |
165 |
125 |
|
100 |
20 |
3 |
|
4-18 |
120 |
110 |
579 |
|
|
50 |
32 |
165 |
125 |
|
100 |
20 |
3 |
|
4-18 |
65 |
185 |
145 |
|
120 |
20 |
3 |
|
4-18 |
135 |
120 |
639 |
|
|
65 |
40 |
185 |
145 |
|
120 |
20 |
3 |
|
4-18 |
80 |
200 |
160 |
|
135 |
20 |
3 |
|
8-18 |
160 |
140 |
671 |
|
|
80 |
50 |
200 |
160 |
|
135 |
20 |
3 |
|
8-18 |
100 |
220 |
180 |
|
155 |
22 |
3 |
|
8-18 |
170 |
135 |
676 |
|
|
100 |
65 |
220 |
180 |
|
155 |
22 |
3 |
|
8-18 |
125 |
250 |
210 |
|
185 |
22 |
3 |
|
8-18 |
195 |
175 |
787 |
|
|
125 |
80 |
250 |
210 |
|
185 |
22 |
3 |
|
8-18 |
150 |
285 |
240 |
|
210 |
24 |
3 |
|
8-23 |
210 |
190 |
977 |
|
|
150 |
100 |
285 |
240 |
|
210 |
24 |
3 |
|
8-23 |
175 |
310 |
270 |
|
240 |
26 |
3 |
|
8-23 |
255 |
230 |
1035 |
|
|
200 |
125 |
340 |
295 |
|
265 |
26 |
3 |
|
12-23 |
250 |
405 |
355 |
|
320 |
30 |
3 |
|
12-26 |
300 |
260 |
1193 |
|
|
SA40Y-25 |
20 |
15 |
105 |
75 |
|
55 |
16 |
2 |
|
4-14 |
25 |
115 |
85 |
|
65 |
16 |
2 |
|
4-14 |
110 |
95 |
518 |
|
25 |
16 |
115 |
85 |
|
65 |
16 |
2 |
|
4-14 |
32 |
140 |
100 |
|
78 |
18 |
2 |
|
4-18 |
110 |
95 |
518 |
|
|
32 |
20 |
140 |
100 |
|
78 |
18 |
2 |
|
4-18 |
40 |
150 |
110 |
|
85 |
18 |
3 |
|
4-18 |
115 |
100 |
518 |
|
|
40 |
25 |
150 |
110 |
|
85 |
18 |
3 |
|
4-18 |
50 |
165 |
125 |
|
100 |
20 |
3 |
|
4-18 |
120 |
110 |
579 |
|
|
50 |
32 |
165 |
125 |
|
100 |
20 |
3 |
|
4-18 |
65 |
185 |
145 |
|
120 |
20 |
3 |
|
4-18 |
135 |
120 |
639 |
|
|
65 |
40 |
185 |
145 |
|
120 |
22 |
3 |
|
8-18 |
80 |
200 |
160 |
|
135 |
20 |
3 |
|
8-18 |
160 |
140 |
671 |
|
|
80 |
50 |
200 |
160 |
|
135 |
22 |
3 |
|
8-18 |
100 |
220 |
180 |
|
155 |
22 |
3 |
|
8-18 |
170 |
135 |
676 |
|
|
100 |
65 |
230 |
190 |
|
160 |
24 |
3 |
|
8-23 |
125 |
250 |
210 |
|
185 |
22 |
3 |
|
8-18 |
195 |
175 |
787 |
|
|
125 |
80 |
270 |
220 |
|
188 |
28 |
3 |
|
8-26 |
150 |
285 |
240 |
|
210 |
24 |
3 |
|
8-23 |
210 |
190 |
977 |
|
|
150 |
100 |
300 |
250 |
|
218 |
30 |
3 |
|
8-26 |
175 |
310 |
270 |
|
240 |
26 |
3 |
|
8-23 |
255 |
230 |
1035 |
|
|
200 |
125 |
360 |
310 |
|
278 |
34 |
3 |
|
12-26 |
250 |
405 |
355 |
|
320 |
30 |
3 |
|
12-26 |
300 |
260 |
1193 |
mso-hansi-font-family:"Times New Roman"">四. "Times New Roman"">概述
mso-hansi-font-family:"Times New Roman"">安全阀是锅炉、压力容器和其他受压力设备上重要的安全附件。其动作可靠性和性能好坏直接关系到设备和人身的安全，并与节能和环境保护紧密相关。而有的用户和设计部门在选型时，总是选错型号。为此本文对安全阀的选用加以分析。
mso-hansi-font-family:"Times New Roman"">五. "Times New Roman"">作用
mso-hansi-font-family:"Times New Roman"">安全阀在系统中起安全保护作用。当系统压力超过规定值时，安全阀打开，将系统中的一部分气体/ mso-hansi-font-family:"Times New Roman"">流体排入大气/ "Times New Roman"">管道外，使系统压力不超过允许值，从而保证系统不因压力过高而发生事故。