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一、气动三通球阀结构特点和应用范围
L（T）形气动球阀是由气动执行机构和三通阀组成，是一种旋转类切断调节阀门，具有关闭严密，结构紧凑，重量轻，维修方便等优点。广泛用于气体、液体、蒸汽、油品等腐蚀性介质的管道自动化控制。
二、气动三通球阀主要外形尺寸及附图
|
公称压力
或压力级
|
公称通径
|
尺寸（mm）
|
|||||||
|
mm
|
in
|
L
|
L1
|
D
|
D1
|
D2
|
b
|
z-Φd
|
|
|
15
|
130
|
65
|
95
|
65
|
45
|
14
|
4-14
|
||
|
20
|
150
|
75
|
105
|
75
|
55/58
|
14/16
|
4-14
|
||
|
25
|
160
|
80
|
115
|
85
|
65/68
|
14/16
|
4-14
|
||
|
32
|
180
|
90
|
135/140
|
100
|
78
|
16
|
4-18
|
||
|
PN1.6MPa
|
40
|
200
|
100
|
145/150
|
110
|
85/88
|
16
|
4-18
|
|
|
50
|
230
|
115
|
160/165
|
125
|
100/102
|
16/18
|
4-18
|
||
|
65
|
290
|
145
|
180/185
|
145
|
120/122
|
18
|
4-18
|
||
|
80
|
310
|
155
|
195/200
|
160
|
135/138
|
20
|
4-18
|
||
|
100
|
350
|
175
|
215/220
|
180
|
155/158
|
20
|
4-18
|
||
|
125
|
400
|
200
|
245/250
|
210
|
185/188
|
22
|
4-18
|
||
|
150
|
480
|
240
|
280/285
|
240
|
210/212
|
24/22
|
8-23/8-22
|
||
|
PN2.5MPa
|
15
|
130
|
65
|
95
|
65
|
45
|
16
|
4-14
|
|
|
20
|
150
|
75
|
105
|
75
|
55/58
|
16
|
4-14
|
||
|
25
|
160
|
80
|
115
|
85
|
65/68
|
16
|
4-14
|
||
|
32
|
180
|
90
|
135/140
|
100
|
78
|
18
|
4-18
|
||
|
PN2.5MPa
|
40
|
200
|
100
|
145/150
|
110
|
85/88
|
18
|
4-18
|
|
|
50
|
230
|
115
|
160/165
|
125
|
100/102
|
20
|
4-18
|
||
|
65
|
290
|
145
|
180/185
|
145
|
120/122
|
22
|
8-18
|
||
|
80
|
310
|
155
|
195/200
|
160
|
135/138
|
22/24
|
8-18
|
||
|
100
|
350
|
175
|
230/235
|
190
|
160/162
|
24
|
8-23/8-22
|
||
|
125
|
400
|
200
|
270
|
220
|
188
|
28/26
|
8-25/8-26
|
||
|
150
|
480
|
240
|
300
|
250
|
218
|
30/28
|
8-25/8-26
|
||
|
PN4.0MPa
|
15
|
130
|
65
|
95
|
65
|
45
|
16
|
4-14
|
|
|
20
|
150
|
75
|
105
|
75
|
55/58
|
16
|
4-14
|
||
|
25
|
160
|
80
|
115
|
85
|
65/68
|
16
|
4-14
|
||
|
32
|
180
|
90
|
135/140
|
100
|
78
|
18
|
4-18
|
||
|
40
|
200
|
100
|
145/150
|
110
|
85/88
|
18
|
4-18
|
||
|
50
|
230
|
115
|
160/165
|
125
|
100/102
|
20
|
4-18
|
||
|
65
|
290
|
145
|
180/185
|
145
|
120/122
|
22
|
8-18
|
||
|
80
|
310
|
155
|
195/200
|
160
|
135/138
|
22
|
8-18
|
||
|
100
|
350
|
175
|
230/235
|
190
|
160/162
|
24
|
8-23/8-22
|
||
|
125
|
400
|
200
|
270
|
220
|
188
|
28
|
8-25/8-26
|
||
|
150
|
480
|
240
|
300
|
250
|
218
|
30
|
8-25/8-26
|
||
|
Class150
PN2.0MPa
|
15
|
1/2
|
130
|
65
|
89
|
60.5
|
35
|
-
|
4-15
|
|
20
|
3/4
|
150
|
75
|
98
|
70
|
43
|
-
|
4-15
|
|
|
25
|
1
|
160
|
80
|
108/110
|
79.5
|
51
|
11.5
|
4-15/4-16
|
|
|
32
|
11/4
|
180
|
90
|
117/120
|
89
|
64
|
13.0
|
4-15/4-16
|
|
|
40
|
11/2
|
200
|
100
|
127/130
|
98.5
|
73
|
14.5
|
4-15/4-16
|
|
|
50
|
2
|
230
|
115
|
152/150
|
120.5
|
92
|
16.0
|
4-19/4-20
|
|
|
65
|
21/2
|
290
|
145
|
178/180
|
139.5
|
105
|
17.5
|
4-19/4-20
|
|
|
80
|
3
|
310
|
155
|
190
|
152.5
|
127
|
19.5
|
4-19/4-20
|
|
|
100
|
4
|
350
|
175
|
229/230
|
190.5
|
157
|
24.0
|
8-19/4-20
|
|
|
125
|
5
|
400
|
200
|
254/255
|
216.0
|
186
|
24.0
|
8-22
|
|
|
150
|
6
|
480
|
240
|
279/280
|
241.5
|
216
|
25.5
|
8-22
|
|
|
JIS10K
|
15
|
130
|
65
|
95
|
70
|
52
|
12
|
4-15
|
|
|
20
|
150
|
75
|
100
|
75
|
58
|
14
|
4-15
|
||
|
25
|
160
|
80
|
125
|
90
|
70
|
14
|
4-19
|
||
|
32
|
180
|
90
|
135
|
100
|
80
|
16
|
4-19
|
||
|
40
|
200
|
100
|
140
|
105
|
85
|
16
|
4-19
|
||
|
50
|
230
|
115
|
155
|
120
|
100
|
16
|
4-19
|
||
|
65
|
290
|
145
|
175
|
140
|
120
|
18
|
4-19
|
||
|
80
|
310
|
155
|
185
|
150
|
130
|
18
|
8-19
|
||
|
100
|
350
|
175
|
210
|
175
|
155
|
18
|
8-19
|
||
|
125
|
400
|
200
|
250
|
210
|
185
|
20
|
8-23
|
||
|
150
|
480
|
240
|
280
|
240
|
215
|
22
|
8-23
|
||
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