品牌 | 天正 | 型号 | A48S-16C |
连接形式 | 法兰 | 材质 | 碳钢 |
阀瓣开启高度 | 全启式安全阀 | 结构形式 | 弹簧式 |
公称通径 | DN25-DN200(mm) | 适用介质 | 蒸汽 |
标准 | 国标 |
■概 述
本阀门适用于工作温度“c型”≤425℃;“i型”≤500℃;“v型”≤500℃;的蒸汽等介质设备或管路上,作为超压保护装置。连接法兰标准按jb/t79-94系列1、系列2。
■主要零部件材料
no.
|
零件名称
|
c型材料
|
i型材料
|
v型材料
|
1
|
阀体
|
wcb
|
zg1cr5mo
|
zg15cr1mo1v
|
2
|
阀座
|
2cr13
|
1cr18ni9ti
|
12cr1mova
|
3
|
调节圈
|
2cr13
|
1cr18ni9ti
|
1cr18ni9ti
|
4
|
阀瓣
|
2cr13
|
17-4ph
|
17-7ph
|
5
|
导向套
|
2cr13
|
1cr18ni9ti
|
1cr18ni9ti
|
6
|
散热器
|
zg230-450
|
zg230-450
|
zg230-450
|
7
|
阀盖
|
zg230-450
|
zg230-450
|
zg230-450
|
8
|
弹簧
|
50crva
|
50crva
|
50crva
|
■外形尺寸和连接尺寸
型号
|
公称
通径 |
do
|
d
|
k
|
g
|
g1
|
z-ød
|
dn"
|
d1
|
k1
|
g3
|
g2
|
z1-ød1
|
l
|
l1
|
≈h
|
a48y-16c
a48y-16i a48y-16v |
40
|
25
|
150
|
110
|
85
|
4-18
|
50
|
165
|
125
|
100
|
4-18
|
120
|
115
|
540
|
||
50
|
32
|
165
|
125
|
100
|
4-18
|
65
|
185
|
145
|
120
|
4-18
|
135
|
120
|
618
|
|||
65
|
40
|
185
|
145
|
120
|
4-18
|
80
|
200
|
160
|
135
|
8-18
|
160
|
140
|
710
|
|||
80
|
50
|
200
|
160
|
135
|
8-18
|
100
|
220
|
180
|
155
|
8-18
|
160
|
150
|
730
|
|||
100
|
65
|
220
|
180
|
155
|
8-18
|
150
|
285
|
240
|
210
|
8-23
|
225
|
175
|
892
|
|||
150
|
100
|
285
|
240
|
210
|
8-23
|
200
|
340
|
295
|
265
|
12-23
|
240
|
235
|
1135
|
|||
200
|
125
|
340
|
295
|
265
|
12-23
|
250
|
405
|
355
|
320
|
12-26
|
290
|
210
|
1135
|
|||
a48y-40
a48y-40i a48y-40v |
25
|
16
|
115
|
85
|
58
|
65
|
4-14
|
32
|
140
|
100
|
78
|
4-18
|
110
|
95
|
429
|
|
32
|
20
|
140
|
100
|
66
|
78
|
4-18
|
40
|
150
|
110
|
85
|
4-18
|
115
|
100
|
421
|
||
40
|
25
|
150
|
110
|
76
|
85
|
4-18
|
50
|
165
|
125
|
100
|
4-18
|
120
|
115
|
540
|
||
50
|
32
|
165
|
125
|
88
|
100
|
4-18
|
65
|
185
|
145
|
120
|
4-18
|
135
|
120
|
618
|
||
65
|
40
|
185
|
145
|
110
|
120
|
8-18
|
80
|
200
|
160
|
135
|
8-18
|
160
|
140
|
710
|
||
80
|
50
|
200
|
160
|
121
|
135
|
8-18
|
100
|
220
|
180
|
155
|
8-18
|
160
|
150
|
730
|
||
100
|
65
|
235
|
190
|
150
|
160
|
8-23
|
150
|
285
|
240
|
210
|
8-23
|
225
|
175
|
892
|
||
150
|
100
|
300
|
250
|
204
|
218
|
8-26
|
200
|
340
|
295
|
265
|
12-23
|
240
|
235
|
1135
|
||
200
|
125
|
375
|
320
|
260
|
282
|
12-30
|
250
|
405
|
355
|
320
|
12-26
|
290
|
310
|
1135
|
||
a48y-64
a48sb-64 a48y-64i a48sb-64i a48y-64v a48sb-64v |
25
|
16
|
140
|
100
|
58
|
78
|
4-18
|
32
|
140
|
100
|
66
|
78
|
4-18
|
110
|
100
|
429
|
32
|
20
|
155
|
110
|
66
|
82
|
4-23
|
40
|
150
|
110
|
76
|
85
|
4-18
|
130
|
110
|
421
|
|
40
|
25
|
170
|
125
|
76
|
95
|
4-23
|
50
|
165
|
125
|
88
|
100
|
4-18
|
135
|
120
|
540
|
|
50
|
32
|
180
|
135
|
88
|
105
|
4-23
|
65
|
185
|
145
|
110
|
120
|
8-18
|
160
|
130
|
618
|
|
50
|
32
|
180
|
135
|
88
|
105
|
4-23
|
80
|
200
|
160
|
121
|
135
|
8-18
|
160
|
145
|
710
|
|
65
|
40
|
205
|
160
|
110
|
130
|
8-23
|
80
|
200
|
160
|
121
|
135
|
8-18
|
175
|
160
|
710
|
|
80
|
50
|
215
|
170
|
121
|
140
|
8-23
|
100
|
235
|
190
|
150
|
160
|
8-23
|
175
|
160
|
730
|
|
100
|
65
|
250
|
200
|
150
|
168
|
8-26
|
125
|
270
|
220
|
176
|
188
|
8-25
|
220
|
200
|
800
|
|
100
|
65
|
250
|
200
|
150
|
168
|
8-26
|
150
|
300
|
250
|
204
|
218
|
8-26
|
220
|
200
|
892
|
|
150
|
100
|
345
|
280
|
204
|
240
|
8-34
|
200
|
375
|
320
|
260
|
282
|
12-30
|
280
|
280
|
1135
|
|
200
|
125
|
405
|
345
|
260
|
300
|
12-36
|
250
|
450
|
385
|
313
|
345
|
12-34
|
300
|
295
|
1135
|
|
a48y-100
a48sb-100 a48y-100i a48sh-100i a48y-100v a48sb-100v |
25
|
16
|
140
|
100
|
58
|
78
|
4-18
|
32
|
140
|
100
|
66
|
78
|
4-18
|
110
|
100
|
429
|
32
|
20
|
155
|
110
|
66
|
82
|
4-23
|
40
|
150
|
110
|
76
|
85
|
4-18
|
130
|
110
|
421
|
|
40
|
25
|
170
|
125
|
76
|
95
|
4-23
|
50
|
165
|
125
|
88
|
100
|
4-18
|
135
|
120
|
540
|
|
50
|
32
|
195
|
145
|
88
|
112
|
4-26
|
65
|
185
|
145
|
110
|
120
|
8-18
|
160
|
130
|
618
|
|
50
|
32
|
195
|
145
|
88
|
112
|
4-26
|
80
|
200
|
160
|
121
|
135
|
8-18
|
160
|
145
|
710
|
|
65
|
32
|
220
|
170
|
110
|
138
|
8-26
|
80
|
200
|
160
|
121
|
135
|
8-18
|
175
|
160
|
710
|
|
80
|
40
|
230
|
180
|
121
|
148
|
8-26
|
100
|
235
|
190
|
150
|
160
|
8-23
|
175
|
160
|
730
|
|
100
|
50
|
265
|
210
|
150
|
172
|
8-30
|
125
|
270
|
220
|
176
|
188
|
8-25
|
220
|
200
|
800
|
|
100
|
50
|
265
|
210
|
150
|
172
|
8-30
|
150
|
300
|
250
|
204
|
218
|
8-26
|
220
|
200
|
892
|
|
150
|
80
|
355
|
290
|
204
|
250
|
12-34
|
200
|
375
|
320
|
260
|
282
|
12-30
|
280
|
280
|
1135
|
|
200
|
125
|
430
|
360
|
260
|
312
|
12-36
|
250
|
450
|
385
|
313
|
345
|
12-34
|
300
|
295
|
1135
|
|
a48sh-40
|
50
|
32
|
160
|
125
|
88
|
105
|
4-18
|
80
|
195
|
160
|
/
|
135
|
8-18
|
124
|
137
|
525
|
48th-100
|
50
|
32
|
195
|
145
|
88
|
112
|
4-26
|
80
|
200
|
160
|
121
|
135
|
8-18
|
160
|
145
|
580
|
a48sb-160
|
80
|
40
|
260
|
205
|
121
|
168
|
8-30
|
150
|
300
|
250
|
204
|
218
|
8-25
|
215
|
210
|
1175
|