Manual butterfly valve, rectangular valve and rectangular valve are widely used in building material, glass, mine, light industry, paper-making etc. It is an important equipment to open and close in two directions and to adjust media in pipelines. It can adjust the flow in pipeline according to different work conditions to meet the requests of pipeline process.
structure features
Manual butterfly valve is welded by quality steel plate. It is characterized by new design, simpleand practical structure, small volume, light weight, small resistance, small starting and closing torque, free, nimble and reliable adjustment, clear and exact opening indication to be conveniently watched and operated. It can control air flow effectively. It is an ideal adjustable equipment in all kinds of air pipeline.
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Capacity parameter：
|
Nominal pressure
|
Medium velocity
|
Leakage ratio
|
Suitable temperature
|
Suitable medium
|
|
0.05MPa
|
≤ 28 m/s
|
≤ 1.5 %
|
≤ 300 ℃
|
Air, gas with powder etc
|
Outline figure of Handle： Outline figure of Worm wheel ：
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Outline connection dimension ：
|
DN
|
D
|
D1
|
B
|
b
|
n-d
|
E
|
E1
|
H
|
H1
|
|
100
|
160
|
135
|
80
|
4
|
4- Φ 10
|
140
|
180
|
150
|
200
|
|
120
|
180
|
155
|
80
|
4
|
4- Φ 10
|
145
|
190
|
150
|
200
|
|
125
|
185
|
160
|
80
|
4
|
4- Φ 10
|
148
|
193
|
150
|
200
|
|
130
|
190
|
165
|
80
|
4
|
8- Φ 10
|
150
|
195
|
150
|
200
|
|
140
|
200
|
175
|
80
|
4
|
8- Φ 10
|
155
|
205
|
150
|
200
|
|
150
|
210
|
185
|
80
|
4
|
8- Φ 10
|
160
|
210
|
150
|
200
|
|
160
|
220
|
195
|
80
|
4
|
8- Φ 10
|
165
|
215
|
200
|
200
|
|
180
|
240
|
215
|
80
|
4
|
8- Φ 10
|
175
|
225
|
200
|
200
|
|
200
|
260
|
235
|
80
|
4
|
8- Φ 10
|
185
|
235
|
200
|
200
|
|
220
|
280
|
255
|
80
|
4
|
8- Φ 10
|
210
|
347
|
200
|
200
|
|
250
|
310
|
285
|
100
|
6
|
12- Φ 10
|
225
|
365
|
350
|
200
|
|
280
|
340
|
315
|
100
|
6
|
12- Φ 10
|
240
|
380
|
350
|
200
|
|
320
|
380
|
355
|
100
|
6
|
12- Φ 10
|
260
|
400
|
350
|
200
|
|
360
|
440
|
405
|
120
|
8
|
16- Φ 12
|
280
|
420
|
350
|
200
|
|
390
|
470
|
435
|
120
|
8
|
16- Φ 12
|
295
|
435
|
350
|
200
|
|
400
|
480
|
445
|
120
|
8
|
16- Φ 12
|
300
|
440
|
450
|
250
|
|
450
|
530
|
495
|
120
|
8
|
16- Φ 12
|
325
|
465
|
450
|
250
|
|
500
|
580
|
545
|
120
|
8
|
20- Φ 12
|
350
|
490
|
450
|
250
|
|
560
|
640
|
605
|
120
|
8
|
20- Φ 12
|
380
|
520
|
450
|
250
|
|
600
|
680
|
645
|
120
|
8
|
20- Φ 12
|
420
|
540
|
600
|
250
|
|
630
|
710
|
675
|
120
|
8
|
20- Φ 12
|
435
|
555
|
600
|
250
|
|
700
|
780
|
745
|
140
|
8
|
20- Φ 12
|
470
|
612
|
600
|
250
|
|
800
|
880
|
845
|
140
|
8
|
24- Φ 12
|
520
|
665
|
600
|
250
|
|
900
|
980
|
945
|
140
|
8
|
24- Φ 12
|
570
|
715
|
600
|
250
|
|
1000
|
1100
|
1055
|
160
|
10
|
28- Φ 14
|
620
|
845
|
600
|
250
|
|
1120
|
1220
|
1175
|
160
|
10
|
28- Φ 14
|
680
|
905
|
600
|
250
|
|
1200
|
1300
|
1255
|
160
|
10
|
28- Φ 14
|
720
|
945
|
600
|
250
|
Structure features：
Manual butterfly valve is welded by quality steel plate. It is characterized by new design, simpleand practical structure, small volume, light weight, small resistance, small starting and closing torque, free, nimble and reliable adjustment, clear and exact opening indication to be conveniently watched and operated. It can control air flow effectively. It is an ideal adjustable equipment in all kinds of air pipeline.
Capacity parameter：
|
Nominal pressure
|
Medium velocity
|
Leakage ratio
|
Suitable temperature
|
Suitable medium
|
|
0.05MPa
|
≤ 28 m/s
|
≤ 1.5%
|
≤ 300 ℃
|
Air, gas with powder etc
|
Outline figure of Handle： Outline figure of Worm wheel ：
Outline connection dimension ：
|
A × B
|
A1 × B1
|
A2 × B2
|
B
|
b
|
n-d
|
X
|
Y
|
H
|
H1
|
E
|
E1
|
|
120 × 120
|
155 × 155
|
180 × 180
|
80
|
4
|
8- Φ 10
|
2
|
2
|
150
|
200
|
140
|
190
|
|
160 × 120
|
195 × 155
|
220 × 180
|
80
|
4
|
8- Φ 10
|
2
|
2
|
150
|
200
|
165
|
215
|
|
160 × 160
|
195 × 195
|
220 × 220
|
80
|
4
|
8- Φ 10
|
2
|
2
|
150
|
200
|
165
|
215
|
|
200 × 160
|
235 × 195
|
260 × 220
|
80
|
4
|
8- Φ 10
|
2
|
2
|
150
|
200
|
185
|
235
|
|
200 × 200
|
235 × 235
|
260 × 260
|
80
|
4
|
8- Φ 10
|
2
|
2
|
200
|
200
|
185
|
235
|
|
250 × 120
|
285 × 155
|
310 × 180
|
100
|
6
|
10- Φ 10
|
3
|
2
|
150
|
200
|
225
|
365
|
|
250 × 160
|
285 × 195
|
310 × 220
|
100
|
6
|
10- Φ 10
|
3
|
2
|
150
|
200
|
225
|
365
|
|
250 × 200
|
285 × 235
|
310 × 260
|
100
|
6
|
10- Φ 10
|
3
|
2
|
200
|
200
|
225
|
365
|
|
250 × 250
|
285 × 285
|
310 × 310
|
100
|
6
|
12- Φ 10
|
3
|
3
|
200
|
200
|
225
|
365
|
|
320 × 160
|
355 × 195
|
380 × 220
|
100
|
6
|
10- Φ 10
|
3
|
2
|
200
|
200
|
260
|
400
|
|
320 × 200
|
355 × 235
|
380 × 260
|
100
|
6
|
10- Φ 10
|
3
|
2
|
300
|
200
|
260
|
400
|
|
320 × 250
|
355 × 285
|
380 × 310
|
100
|
6
|
12- Φ 10
|
3
|
3
|
300
|
200
|
260
|
400
|
|
320 × 320
|
355 × 355
|
380 × 380
|
100
|
6
|
12- Φ 10
|
3
|
3
|
300
|
200
|
260
|
400
|
|
400 × 200
|
445 × 245
|
480 × 280
|
120
|
8
|
12- Φ 12
|
4
|
2
|
300
|
250
|
300
|
440
|
|
400 × 250
|
445 × 295
|
480 × 330
|
120
|
8
|
14- Φ 12
|
4
|
3
|
300
|
250
|
300
|
440
|
|
400 × 320
|
445 × 365
|
480 × 400
|
120
|
8
|
14- Φ 12
|
4
|
3
|
300
|
250
|
300
|
440
|
|
400 × 400
|
445 × 445
|
480 × 480
|
120
|
8
|
16- Φ 12
|
4
|
4
|
300
|
250
|
300
|
440
|
|
500 × 200
|
545 × 245
|
580 × 280
|
120
|
8
|
14- Φ 12
|
5
|
2
|
350
|
250
|
350
|
490
|
|
500 × 250
|
545 × 295
|
580 × 330
|
120
|
8
|
16- Φ 12
|
5
|
3
|
350
|
250
|
350
|
490
|
|
500 × 320
|
545 × 365
|
580 × 400
|
120
|
8
|
16- Φ 12
|
5
|
3
|
350
|
250
|
350
|
490
|
|
500 × 400
|
545 × 445
|
580 × 480
|
120
|
8
|
18- Φ 12
|
5
|
4
|
350
|
250
|
350
|
490
|
|
500 × 500
|
545 × 545
|
580 × 580
|
120
|
8
|
20- Φ 12
|
5
|
5
|
350
|
250
|
350
|
490
|
|
630 × 250
|
675 × 295
|
710 × 330
|
120
|
8
|
18- Φ 12
|
6
|
3
|
450
|
250
|
435
|
555
|
|
630 × 320
|
675 × 365
|
710 × 400
|
120
|
8
|
18- Φ 12
|
6
|
3
|
450
|
250
|
435
|
555
|
|
630 × 400
|
675 × 445
|
710 × 480
|
120
|
8
|
20- Φ 12
|
6
|
4
|
450
|
250
|
435
|
555
|
|
630 × 500
|
675 × 545
|
710 × 580
|
120
|
8
|
22- Φ 12
|
6
|
5
|
450
|
250
|
435
|
555
|
|
630 × 630
|
675 × 675
|
710 × 710
|
120
|
8
|
24- Φ 12
|
6
|
6
|
450
|
250
|
435
|
555
|
|
800 × 320
|
845 × 365
|
880 × 400
|
140
|
8
|
20- Φ 12
|
7
|
3
|
500
|
250
|
520
|
665
|
|
800 × 400
|
845 × 445
|
880 × 480
|
140
|
8
|
22- Φ 12
|
7
|
4
|
500
|
250
|
520
|
665
|
|
800 × 500
|
845 × 545
|
880 × 580
|
140
|
8
|
24- Φ 12
|
7
|
5
|
500
|
250
|
520
|
665
|
|
800 × 630
|
845 × 675
|
880 × 710
|
140
|
8
|
26- Φ 12
|
7
|
6
|
500
|
250
|
520
|
665
|
|
800 × 800
|
845 × 845
|
880 × 880
|
140
|
8
|
28- Φ 12
|
7
|
7
|
500
|
250
|
520
|
665
|