概述：
A38Y、A43H、A37H型雙聯(lián)彈簧式安全閥是在Y型接頭上裝設兩個同樣規(guī)格的A48Y或A47H型安全閥而構(gòu)成，其公稱通徑系列指Y型接頭進口通徑，其組合情況如下表：
A38Y、A43H、A37H型雙聯(lián)彈簧式安全閥是在Y型接頭上裝設兩個同樣規(guī)格的A48Y或A47H型安全閥而構(gòu)成，其公稱通徑系列指Y型接頭進口通徑，其組合情況如下表：
|
A38Y型
|
相應的A48Y型
|
|
50
|
32×2
|
|
80
|
50×2
|
|
100
|
65×2
|
|
150
|
100×2
|
|
A43Y型
|
相應的A47Y型
|
|
50
|
32×2
|
|
80
|
50×2
|
|
100
|
80×2
|
|
125
|
100×2
|
|
150
|
125×2
|
|
A37Y型
|
相應的A47Y型
|
|
50
|
32×2
|
|
80
|
65×2
|
|
100
|
80×2
|
|
125
|
100×2
|
|
150
|
125×2
|
連接尺寸：
|
型號
|
公稱通徑
|
do
|
D
|
K
|
g
|
g1
|
b
|
f
|
f1
|
Z-ød
|
DN
|
D1
|
K1
|
g2
|
b1
|
f
|
Z1-ød1
|
L
|
L1
|
L0
|
h
|
H
|
|
A37H-16C A43H-16C
|
50
|
25
|
165
|
125
|
100
|
20
|
3
|
4-18
|
32
|
140
|
100
|
78
|
18
|
2
|
4-18
|
115
|
110
|
165
|
235
|
547
|
||
|
80
|
40
|
200
|
160
|
135
|
20
|
3
|
8-18
|
50
|
165
|
125
|
100
|
16
|
3
|
4-18
|
135
|
120
|
190
|
285
|
795
|
|||
|
80
|
50
|
200
|
160
|
135
|
20
|
3
|
8-18
|
65
|
185
|
145
|
120
|
17
|
3
|
4-18
|
140
|
130
|
205
|
310
|
835
|
|||
|
100
|
65
|
220
|
180
|
155
|
22
|
3
|
8-18
|
80
|
200
|
160
|
135
|
20
|
3
|
8-18
|
160
|
135
|
255
|
355
|
890
|
|||
|
125
|
80
|
250
|
210
|
185
|
22
|
3
|
8-18
|
100
|
220
|
180
|
155
|
22
|
3
|
8-18
|
170
|
160
|
260
|
410
|
1170
|
|||
|
150
|
100
|
285
|
240
|
210
|
24
|
3
|
8-23
|
125
|
250
|
210
|
185
|
22
|
3
|
8-18
|
190
|
190
|
275
|
430
|
1240
|
|||
|
A37H-25 A43H-25
|
50
|
25
|
165
|
125
|
100
|
20
|
3
|
4-18
|
32
|
140
|
100
|
78
|
18
|
2
|
4-18
|
115
|
110
|
165
|
235
|
547
|
||
|
80
|
40
|
200
|
160
|
135
|
22
|
3
|
8-18
|
50
|
165
|
125
|
100
|
16
|
3
|
4-18
|
135
|
120
|
190
|
285
|
795
|
|||
|
80
|
50
|
200
|
160
|
135
|
22
|
3
|
8-18
|
65
|
185
|
145
|
120
|
18
|
3
|
4-18
|
140
|
130
|
205
|
310
|
835
|
|||
|
100
|
65
|
230
|
190
|
160
|
24
|
3
|
8-23
|
80
|
200
|
160
|
135
|
20
|
3
|
8-18
|
160
|
135
|
255
|
355
|
890
|
|||
|
125
|
80
|
270
|
220
|
188
|
28
|
3
|
8-26
|
100
|
220
|
180
|
155
|
22
|
3
|
8-18
|
170
|
160
|
260
|
410
|
1170
|
|||
|
150
|
100
|
300
|
250
|
218
|
30
|
3
|
8-26
|
125
|
250
|
210
|
185
|
22
|
3
|
8-18
|
190
|
190
|
275
|
430
|
1240
|
|||
|
A37H-40 A43H-40
|
50
|
25
|
165
|
125
|
100
|
88
|
20
|
3
|
4
|
4-18
|
32
|
140
|
100
|
78
|
16
|
2
|
4-18
|
115
|
110
|
165
|
235
|
547
|
|
80
|
40
|
200
|
160
|
135
|
121
|
22
|
3
|
4
|
8-18
|
50
|
165
|
125
|
100
|
16
|
3
|
4-18
|
135
|
120
|
190
|
285
|
795
|
|
|
80
|
50
|
200
|
160
|
135
|
121
|
22
|
3
|
4
|
8-18
|
65
|
185
|
145
|
120
|
18
|
3
|
4-18
|
140
|
130
|
205
|
310
|
835
|
|
|
100
|
65
|
235
|
190
|
160
|
150
|
24
|
3
|
4.5
|
8-23
|
80
|
200
|
167
|
135
|
20
|
3
|
8-18
|
160
|
135
|
255
|
355
|
890
|
|
|
125
|
80
|
270
|
220
|
188
|
176
|
28
|
3
|
4.5
|
8-26
|
100
|
220
|
180
|
155
|
22
|
3
|
8-18
|
170
|
160
|
260
|
410
|
1170
|
|
|
150
|
100
|
300
|
250
|
218
|
204
|
30
|
3
|
4.5
|
8-26
|
125
|
250
|
210
|
185
|
22
|
3
|
8-18
|
190
|
190
|
275
|
430
|
1240
|
|
|
A38Y-16C
|
50
|
20
|
165
|
125
|
100
|
20
|
3
|
4-18
|
40
|
150
|
110
|
85
|
16
|
3
|
4-18
|
198
|
100
|
165
|
225
|
636
|
||
|
80
|
32
|
200
|
160
|
135
|
20
|
3
|
8-18
|
65
|
185
|
145
|
120
|
20
|
3
|
4-18
|
230
|
120
|
190
|
265
|
817
|
|||
|
100
|
40
|
220
|
180
|
155
|
22
|
3
|
8-18
|
80
|
200
|
160
|
135
|
20
|
3
|
8-18
|
293
|
140
|
265
|
265
|
921
|
|||
|
150
|
80
|
285
|
240
|
210
|
24
|
3
|
8-23
|
125
|
250
|
210
|
185
|
22
|
3
|
8-18
|
320
|
175
|
250
|
420
|
1097
|
|||
|
A38Y-25
|
50
|
20
|
165
|
125
|
100
|
20
|
3
|
4-18
|
40
|
150
|
110
|
85
|
16
|
3
|
4-18
|
198
|
100
|
165
|
225
|
636
|
||
|
80
|
32
|
200
|
160
|
135
|
22
|
3
|
8-18
|
65
|
185
|
145
|
120
|
20
|
3
|
4-18
|
230
|
120
|
190
|
265
|
817
|
|||
|
100
|
40
|
230
|
190
|
160
|
24
|
3
|
8-23
|
80
|
200
|
160
|
135
|
20
|
3
|
8-18
|
293
|
140
|
265
|
265
|
921
|
|||
|
150
|
80
|
300
|
250
|
218
|
30
|
3
|
8-26
|
125
|
250
|
210
|
185
|
22
|
3
|
8-18
|
320
|
175
|
250
|
420
|
1097
|
|||
|
A38Y-40
|
50
|
20
|
165
|
125
|
100
|
88
|
20
|
3
|
4
|
4-18
|
40
|
150
|
110
|
85
|
16
|
3
|
4-18
|
198
|
100
|
165
|
225
|
636
|
|
80
|
32
|
200
|
160
|
135
|
121
|
22
|
3
|
4
|
8-18
|
65
|
185
|
145
|
120
|
20
|
3
|
4-18
|
230
|
120
|
190
|
265
|
817
|
|
|
100
|
40
|
235
|
190
|
160
|
150
|
24
|
3
|
4.5
|
8-23
|
80
|
200
|
160
|
135
|
20
|
3
|
8-18
|
293
|
140
|
265
|
265
|
921
|
|
|
150
|
80
|
300
|
250
|
218
|
204
|
30
|
3
|
4.5
|
8-26
|
125
|
250
|
210
|
185
|
22
|
3
|
8-18
|
320
|
175
|
250
|
420
|
1090
|
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