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通过认证 
A42Y-25C/A42Y-40C/A42Y-64C弹簧全启封闭式安全阀型适用于工作温度≤300℃空气、石油气、液体等介质的设备和管路上。A42Y-P型及A42Y-R型适用于工作温度≤200℃有腐蚀性的介质的设备和管路上，作为超压保护装置。
; ; ; ;连接法兰标准按JB/T……-94系列1。≥6.4MPa按JB/T……-94系列2。
主要零部件材料
|
NO.
|
零件名称
|
A42Y-C/KA42Y-C材料
|
A42Y-P/KA42Y-P材料
|
A42Y-R材料
|
DA42Y-P材料
|
|
1
|
阀座
|
2Cr13/1Cr18Ni9Ti
|
ZG1Cr18Ni9Ti
|
ZG1Cr18Ni12Mo2Ti
|
ZG1Cr18Ni9Ti
|
|
2
|
阀体
|
WCB
|
ZG1Cr18Ni9Ti
|
ZG1Cr18Ni12Mo2Ti
|
LCB/ZG1Cr18Ni9Ti
|
|
3
|
调节圈
|
2Cr13/1Cr18Ni9Ti
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
1Cr18Ni9Ti
|
|
4
|
反冲盘
|
2Cr13/1Cr18Ni9Ti
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
1Cr18Ni9Ti
|
|
5
|
阀瓣
|
2Cr13/1Cr18Ni9Ti
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
1Cr18Ni9Ti
|
|
6
|
导向套
|
2Cr13/1Cr18Ni9Ti
|
1Cr18Ni9Ti
|
1Cr18Ni12Mo2Ti
|
1Cr18Ni9Ti
|
|
7
|
阀盖
|
ZG230-450
|
ZG230-450
|
ZG230-450
|
ZG1Cr18Ni9Ti
|
|
8
|
弹簧
|
50CrVA
|
50CrVA包覆氟塑料
|
50CrVA包覆氟塑料
|
50CrVA
|
|
9
|
阀杆
|
2Cr13
|
1Cr18Ni9Ti/1Cr18Ni12Mo2Ti
|
1Cr18Ni9Ti/1Cr18Ni12Mo2Ti
|
1Cr18Ni9Ti
|
|
10
|
调整螺杆
|
45
|
2Cr13
|
2Cr13
|
2Cr13
|
|
11
|
阀帽
|
ZG200-400
|
ZG200-400
|
ZG200-400
|
ZG230-450
|
|
;
|
密封面材料
|
堆焊Co基硬质合金
|
|||
外形尺寸和连接尺寸
|
型号
|
公称通径
|
do
|
D
|
K
|
g
|
g1
|
b
|
f
|
f1
|
Z-ød
|
DN"
|
D1
|
K1
|
g3
|
g2
|
b1
|
f"
|
f1"
|
Z1-ød1
|
L
|
L1
|
≈H
|
|
A42H-16C
A42Y-16P A42Y-16R KA42Y-16C DA42Y-16C（P） |
20
|
15
|
105
|
75
|
;
|
55
|
16
|
2
|
;
|
4-14
|
25
|
115
|
85
|
;
|
65
|
16
|
2
|
;
|
4-14
|
110
|
95
|
378
|
|
25
|
16
|
115
|
85
|
;
|
65
|
16
|
2
|
;
|
4-14
|
32
|
140
|
100
|
;
|
78
|
18
|
2
|
;
|
4-18
|
110
|
95
|
378
|
|
|
32
|
20
|
140
|
100
|
;
|
78
|
18
|
2
|
;
|
4-18
|
40
|
150
|
110
|
;
|
85
|
18
|
3
|
;
|
4-18
|
115
|
100
|
378
|
|
|
40
|
25
|
150
|
110
|
;
|
85
|
18
|
3
|
;
|
4-18
|
50
|
165
|
125
|
;
|
100
|
20
|
3
|
;
|
4-18
|
120
|
110
|
406
|
|
|
50
|
32
|
165
|
125
|
;
|
100
|
20
|
3
|
;
|
4-18
|
65
|
185
|
145
|
;
|
120
|
20
|
3
|
;
|
4-18
|
135
|
120
|
450
|
|
|
65
|
40
|
185
|
145
|
;
|
120
|
20
|
3
|
;
|
4-18
|
80
|
200
|
160
|
;
|
135
|
20
|
3
|
;
|
8-18
|
160
|
140
|
520
|
|
|
80
|
50
|
200
|
160
|
;
|
135
|
20
|
3
|
;
|
8-18
|
100
|
220
|
180
|
;
|
155
|
22
|
3
|
;
|
8-18
|
170
|
135
|
525
|
|
|
100
|
65
|
220
|
180
|
;
|
155
|
22
|
3
|
;
|
8-18
|
125
|
250
|
210
|
;
|
185
|
22
|
3
|
;
|
8-18
|
195
|
175
|
690
|
|
|
125
|
80
|
250
|
210
|
;
|
185
|
22
|
3
|
;
|
8-18
|
150
|
285
|
240
|
;
|
210
|
24
|
3
|
;
|
8-23
|
210
|
190
|
780
|
|
|
150
|
100
|
285
|
240
|
;
|
210
|
24
|
3
|
;
|
8-23
|
175
|
310
|
270
|
;
|
240
|
26
|
3
|
;
|
8-23
|
255
|
230
|
838
|
|
|
200
|
125
|
340
|
295
|
;
|
265
|
26
|
3
|
;
|
12-23
|
250
|
405
|
355
|
;
|
320
|
30
|
3
|
;
|
12-26
|
300
|
260
|
992
|
|
|
250
|
150
|
405
|
355
|
;
|
320
|
30
|
3
|
;
|
12-26
|
300
|
460
|
410
|
;
|
375
|
30
|
4
|
;
|
12-26
|
350
|
320
|
1266
|
|
|
300
|
220
|
460
|
410
|
;
|
375
|
30
|
4
|
;
|
12-26
|
400
|
580
|
525
|
;
|
485
|
36
|
4
|
;
|
16-30
|
370
|
350
|
1283
|
|
|
350
|
250
|
520
|
470
|
;
|
435
|
34
|
4
|
;
|
16-26
|
500
|
715
|
650
|
;
|
608
|
44
|
4
|
;
|
20-34
|
500
|
450
|
1520
|
|
|
400
|
280
|
580
|
525
|
;
|
485
|
36
|
4
|
;
|
16-30
|
500
|
715
|
650
|
;
|
608
|
44
|
4
|
;
|
20-34
|
500
|
450
|
1530
|
|
|
A42H-25C
A42Y-25P A42Y-25R KA42Y-25C DA42Y-25（P） |
20
|
15
|
105
|
75
|
;
|
55
|
16
|
2
|
;
|
4-14
|
25
|
115
|
85
|
;
|
65
|
16
|
2
|
;
|
4-14
|
110
|
95
|
378
|
|
25
|
16
|
115
|
85
|
;
|
65
|
16
|
2
|
;
|
4-14
|
32
|
140
|
100
|
;
|
78
|
18
|
2
|
;
|
4-18
|
110
|
95
|
378
|
|
|
32
|
20
|
140
|
100
|
;
|
78
|
18
|
2
|
;
|
4-18
|
40
|
150
|
110
|
;
|
85
|
18
|
3
|
;
|
4-18
|
115
|
100
|
378
|
|
|
40
|
25
|
150
|
110
|
;
|
85
|
18
|
3
|
;
|
4-18
|
50
|
165
|
125
|
;
|
100
|
20
|
3
|
;
|
4-18
|
120
|
110
|
406
|
|
|
50
|
32
|
165
|
125
|
;
|
100
|
20
|
3
|
;
|
4-18
|
65
|
185
|
145
|
;
|
120
|
20
|
3
|
;
|
4-18
|
135
|
120
|
450
|
|
|
65
|
40
|
185
|
145
|
;
|
120
|
22
|
3
|
;
|
8-18
|
80
|
200
|
160
|
;
|
135
|
20
|
3
|
;
|
8-18
|
160
|
140
|
520
|
|
|
80
|
50
|
200
|
160
|
;
|
135
|
22
|
3
|
;
|
8-18
|
100
|
220
|
180
|
;
|
155
|
22
|
3
|
;
|
8-18
|
170
|
135
|
525
|
|
|
100
|
65
|
230
|
190
|
;
|
160
|
24
|
3
|
;
|
8-23
|
125
|
250
|
210
|
;
|
185
|
22
|
3
|
;
|
8-18
|
195
|
175
|
690
|
|
|
125
|
80
|
270
|
220
|
;
|
188
|
28
|
3
|
;
|
8-26
|
150
|
285
|
240
|
;
|
210
|
24
|
3
|
;
|
8-23
|
210
|
190
|
780
|
|
|
150
|
100
|
300
|
250
|
;
|
218
|
30
|
3
|
;
|
8-26
|
175
|
310
|
270
|
;
|
240
|
26
|
3
|
;
|
8-23
|
255
|
230
|
838
|
|
|
200
|
125
|
360
|
310
|
;
|
278
|
34
|
3
|
;
|
12-26
|
250
|
405
|
355
|
;
|
320
|
30
|
3
|
;
|
12-26
|
300
|
260
|
992
|
|
|
250
|
150
|
425
|
370
|
;
|
332
|
36
|
3
|
;
|
12-30
|
300
|
460
|
410
|
;
|
375
|
30
|
4
|
;
|
12-26
|
350
|
320
|
1266
|
|
|
300
|
220
|
485
|
430
|
;
|
390
|
40
|
4
|
;
|
16-30
|
400
|
580
|
525
|
;
|
485
|
36
|
4
|
;
|
16-30
|
370
|
350
|
1283
|
|
|
A42H-40C
A42Y-40P A42Y-40R KA42Y-40C DA42Y-40（P） |
20
|
15
|
105
|
75
|
51
|
55
|
16
|
2
|
4
|
4-14
|
25
|
115
|
85
|
;
|
65
|
16
|
2
|
;
|
4-14
|
110
|
95
|
378
|
|
25
|
16
|
115
|
85
|
58
|
65
|
16
|
2
|
4
|
4-14
|
32
|
140
|
100
|
;
|
78
|
18
|
2
|
;
|
4-18
|
110
|
95
|
378
|
|
|
32
|
20
|
140
|
100
|
66
|
78
|
18
|
2
|
4
|
4-18
|
40
|
150
|
110
|
;
|
85
|
18
|
3
|
;
|
4-18
|
115
|
100
|
378
|
|
|
40
|
25
|
150
|
110
|
76
|
85
|
18
|
3
|
4
|
4-18
|
50
|
165
|
125
|
;
|
100
|
20
|
3
|
;
|
4-18
|
120
|
110
|
406
|
|
|
50
|
32
|
165
|
125
|
88
|
100
|
20
|
3
|
4
|
4-18
|
65
|
185
|
145
|
;
|
120
|
20
|
3
|
;
|
4-18
|
135
|
120
|
450
|
|
|
65
|
40
|
185
|
145
|
110
|
120
|
22
|
3
|
4
|
8-18
|
80
|
200
|
160
|
;
|
135
|
20
|
3
|
;
|
8-18
|
160
|
140
|
520
|
|
|
80
|
50
|
200
|
160
|
121
|
135
|
22
|
3
|
4
|
8-18
|
100
|
220
|
180
|
;
|
155
|
22
|
3
|
;
|
8-18
|
170
|
135
|
525
|
|
|
100
|
65
|
235
|
190
|
150
|
160
|
24
|
3
|
4.5
|
8-23
|
125
|
250
|
210
|
;
|
185
|
22
|
3
|
;
|
8-18
|
195
|
175
|
690
|
|
|
125
|
80
|
270
|
220
|
176
|
188
|
28
|
3
|
4.5
|
8-26
|
150
|
285
|
240
|
;
|
210
|
24
|
3
|
;
|
8-23
|
210
|
190
|
780
|
|
|
150
|
100
|
300
|
250
|
204
|
218
|
30
|
3
|
4.5
|
8-26
|
175
|
310
|
270
|
;
|
240
|
26
|
3
|
;
|
8-23
|
255
|
230
|
838
|
|
|
200
|
125
|
375
|
320
|
260
|
282
|
38
|
3
|
4.5
|
12-30
|
250
|
405
|
355
|
;
|
320
|
30
|
3
|
;
|
12-26
|
300
|
260
|
992
|
|
|
250
|
150
|
450
|
385
|
313
|
345
|
42
|
3
|
4.5
|
12-34
|
300
|
460
|
410
|
;
|
375
|
30
|
4
|
;
|
12-26
|
350
|
320
|
1266
|
|
|
A42H-64
A42Y-64P A42Y-64R DA42Y-64（P） |
20
|
10
|
125
|
90
|
51
|
68
|
22
|
2
|
4
|
4-18
|
25
|
115
|
85
|
58
|
65
|
16
|
2
|
4
|
4-14
|
96
|
85
|
264
|
|
25
|
16
|
140
|
100
|
58
|
78
|
22
|
2
|
4
|
4-18
|
32
|
140
|
100
|
66
|
78
|
18
|
2
|
4
|
4-18
|
110
|
100
|
277
|
|
|
32
|
20
|
155
|
110
|
66
|
82
|
24
|
2
|
4
|
4-23
|
40
|
150
|
110
|
76
|
85
|
18
|
3
|
4
|
4-18
|
130
|
110
|
289
|
|
|
40
|
25
|
170
|
125
|
76
|
95
|
24
|
3
|
4
|
4-23
|
50
|
165
|
125
|
88
|
100
|
20
|
3
|
4
|
4-18
|
130
|
120
|
319
|
|
|
50
|
32
|
180
|
135
|
88
|
105
|
26
|
3
|
4
|
4-23
|
65
|
185
|
145
|
110
|
120
|
222
|
3
|
4
|
8-18
|
135
|
130
|
389
|
|
|
65
|
40
|
205
|
160
|
110
|
130
|
28
|
3
|
4
|
8-23
|
80
|
200
|
160
|
121
|
135
|
22
|
3
|
4
|
8-18
|
175
|
160
|
493
|
|
|
80
|
50
|
215
|
170
|
121
|
140
|
30
|
3
|
4
|
8-23
|
100
|
235
|
190
|
150
|
160
|
24
|
3
|
4.5
|
8-23
|
175
|
160
|
483
|
|
|
100
|
65
|
250
|
200
|
150
|
168
|
32
|
3
|
4.5
|
8-26
|
125
|
270
|
220
|
176
|
188
|
28
|
3
|
4.5
|
8-25
|
195
|
195
|
613
|
|
|
150
|
100
|
345
|
280
|
204
|
240
|
38
|
3
|
4.5
|
8-34
|
200
|
375
|
320
|
260
|
282
|
38
|
3
|
4.5
|
12-30
|
280
|
265
|
894
|
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