J41H/W是一种直通式截止阀,它依靠阀杆压力,使阀瓣密封面与阀座密封面紧密结合,阴止介质流通。在启闭过程中密封面之间摩擦力小,耐磨,开启高度小,制造工艺性能好等特点。它是工业部门中使用最广泛的一种阀门。
特点结构
·与闸阀相比，截止阀的结构较简单，制造和维修都比较方便；
·密封面不易磨损、擦伤、密封性能较好，寿命较长；
·启闭时阀瓣行程较小，启闭时间较短。设计与制造标准：
·密封面不易磨损、擦伤、密封性能较好，寿命较长；
·启闭时阀瓣行程较小，启闭时间较短。设计与制造标准：
●设计与制造: GB12233
●法兰尺寸: JB/T79 GB9113
●结构长度: GB12221
●检验与实验: GB/T13927
●法兰尺寸: JB/T79 GB9113
●结构长度: GB12221
●检验与实验: GB/T13927
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公称压力
PN |
公称通径
DN |
主要连接尺寸
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Z43外形尺寸
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|||||||||
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L
|
D
|
D1
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D2
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D6
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b
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f
|
f1
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Z-φd
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H
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D0
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||
|
1.6MPa
|
15
|
130
|
95
|
65
|
45
|
-
|
14
|
2
|
-
|
4-14
|
119
|
75
|
|
20
|
150
|
105
|
75
|
55
|
-
|
14
|
2
|
-
|
4-14
|
120
|
75
|
75
|
|
25
|
160
|
115
|
85
|
65
|
-
|
14
|
2
|
-
|
4-14
|
126
|
75
|
75
|
|
32
|
180
|
135
|
100
|
78
|
-
|
15
|
2
|
-
|
4-18
|
160
|
120
|
120
|
|
40
|
200
|
146
|
110
|
85
|
-
|
16
|
2
|
-
|
4-18
|
168
|
120
|
120
|
|
50
|
230
|
160
|
125
|
100
|
-
|
16
|
3
|
-
|
4-18
|
194
|
160
|
160
|
|
65
|
290
|
180
|
145
|
120
|
-
|
18
|
3
|
-
|
4-18
|
-
|
-
|
-
|
|
80
|
310
|
195
|
160
|
135
|
-
|
20
|
3
|
-
|
8-18
|
-
|
-
|
-
|
|
100
|
350
|
215
|
180
|
155
|
-
|
20
|
3
|
-
|
8-18
|
-
|
-
|
-
|
|
125
|
400
|
245
|
210
|
185
|
-
|
22
|
3
|
-
|
8-18
|
-
|
-
|
-
|
|
150
|
480
|
280
|
240
|
210
|
-
|
24
|
3
|
-
|
8-23
|
-
|
-
|
-
|
|
2.5MPa
|
15
|
130
|
95
|
65
|
45
|
-
|
16
|
2
|
-
|
4-14
|
230
|
120
|
|
20
|
150
|
105
|
75
|
55
|
-
|
16
|
2
|
-
|
4-14
|
275
|
140
|
|
|
25
|
160
|
115
|
85
|
65
|
-
|
16
|
2
|
-
|
4-14
|
295
|
160
|
|
|
32
|
180
|
135
|
100
|
78
|
-
|
18
|
2
|
-
|
4-18
|
335
|
160
|
|
|
40
|
200
|
145
|
110
|
85
|
-
|
18
|
3
|
-
|
4-18
|
380
|
200
|
|
|
50
|
230
|
160
|
125
|
100
|
-
|
20
|
3
|
-
|
4-18
|
398
|
240
|
|
|
65
|
290
|
180
|
145
|
120
|
-
|
22
|
3
|
-
|
8-18
|
433
|
280
|
|
|
80
|
310
|
195
|
160
|
135
|
-
|
22
|
3
|
-
|
8-18
|
468
|
320
|
|
|
100
|
350
|
230
|
190
|
160
|
-
|
24
|
3
|
-
|
8-23
|
520
|
360
|
|
|
125
|
400
|
270
|
220
|
188
|
-
|
28
|
3
|
-
|
8-25
|
556
|
400
|
|
|
150
|
480
|
300
|
250
|
218
|
-
|
30
|
3
|
-
|
8-25
|
674
|
400
|
|
|
200
|
600
|
360
|
310
|
278
|
-
|
34
|
3
|
-
|
12-25
|
806
|
450
|
|
|
250
|
650
|
425
|
370
|
332
|
-
|
36
|
3
|
-
|
12-30
|
880
|
550
|
|
|
300
|
750
|
485
|
430
|
390
|
-
|
40
|
4
|
-
|
16-34
|
995
|
800
|
|
|
4.0MPa
|
15
|
130
|
95
|
65
|
45
|
40
|
16
|
2
|
4
|
4-14
|
230
|
120
|
|
20
|
150
|
105
|
75
|
55
|
51
|
16
|
2
|
4
|
4-14
|
275
|
140
|
|
|
25
|
160
|
115
|
85
|
65
|
58
|
16
|
2
|
4
|
4-14
|
295
|
160
|
|
|
32
|
180
|
135
|
100
|
78
|
66
|
18
|
3
|
4
|
4-18
|
308
|
160
|
|
|
40
|
200
|
145
|
110
|
85
|
76
|
18
|
3
|
4
|
4-18
|
354
|
200
|
|
|
50
|
230
|
160
|
125
|
100
|
88
|
20
|
3
|
4
|
4-18
|
380
|
240
|
|
|
65
|
290
|
180
|
145
|
120
|
110
|
22
|
3
|
4
|
8-18
|
420
|
280
|
|
|
80
|
310
|
195
|
160
|
135
|
121
|
22
|
3
|
4
|
8-18
|
462
|
320
|
|
|
100
|
350
|
230
|
190
|
160
|
150
|
24
|
3
|
4.5
|
8-23
|
506
|
360
|
|
|
125
|
400
|
270
|
220
|
188
|
176
|
28
|
3
|
4.5
|
8-25
|
556
|
400
|
|
|
150
|
480
|
300
|
250
|
218
|
204
|
30
|
3
|
4.5
|
8-25
|
692
|
400
|
|
|
200
|
600
|
375
|
320
|
282
|
260
|
38
|
3
|
4.5
|
12-30
|
806
|
450
|
|
|
6.4MPa
|
15
|
170
|
105
|
75
|
55
|
41
|
18
|
2
|
4
|
4-18
|
210
|
140
|
|
20
|
190
|
125
|
90
|
68
|
51
|
20
|
2
|
4
|
4-18
|
248
|
160
|
|
|
25
|
210
|
135
|
100
|
78
|
58
|
22
|
2
|
4
|
4-18
|
275
|
180
|
|
|
32
|
230
|
150
|
110
|
82
|
66
|
24
|
3
|
4
|
4-23
|
355
|
200
|
|
|
40
|
260
|
165
|
125
|
95
|
76
|
24
|
3
|
4
|
4-23
|
395
|
240
|
|
|
50
|
300
|
175
|
135
|
105
|
88
|
26
|
3
|
4
|
4-23
|
450
|
280
|
|
|
65
|
340
|
200
|
160
|
130
|
110
|
28
|
3
|
4
|
8-23
|
494
|
320
|
|
|
80
|
380
|
210
|
170
|
140
|
121
|
30
|
3
|
4
|
8-23
|
531
|
360
|
|
|
100
|
430
|
250
|
200
|
168
|
150
|
32
|
3
|
4.5
|
8-25
|
580
|
400
|
|
|
150
|
550
|
340
|
280
|
240
|
204
|
38
|
3
|
4.5
|
8-34
|
710
|
450
|
|