Double-eccentric flanged expansion butterfly valve
Keywords:
Valve Encyclopedia
Category:
- Product Description
-
Main parts
1
Telescopic pipe
2
Pressure plate
3
Telescopic pipe seal ring
4
Valve shaft
5
Self-sealing bearing
6
Valve plate
7
Valve body
8
Telescopic limit bolt
DS341X/H-2.5/6/10/16 Worm Gear Actuated Double-Eccentric Flanged Expansion Butterfly Valve—Outline and Connection Dimensions (Unit: mm)
DN
L
Expansion amount
△L
H1
H2
H3
A1
A2
middle
0.25MPa
0.6MPa
1.0MPa
1.6MPa
D1
n-d
D1
n-d
D1
n-d
D1
n-d
50
150
±10
82.5
150
66
135
42
150
110
4-φ14
125
4-φ14
125
4-φ19
125
4-φ19
65
170
±10
92.5
165
66
135
42
150
130
4-φ14
145
4-φ14
145
4-φ19
145
4-φ19
80
180
±10
100
170
66
135
42
150
150
4-φ19
160
4-φ19
160
8-φ19
160
8-φ19
100
190
±10
125
195
11
135
42
180
170
4-φ19
180
4-φ19
180
8-φ19
180
8-φ19
125
200
±10
142
220
77
135
42
180
200
8-φ19
210
8-φ19
210
8-φ19
210
8-φ19
150
210
±10
160
250
77
135
42
320
225
8-φ19
240
8-φ19
240
8-φ23
240
8-φ23
200
230
±12
190
275
107
202
60
320
280
8-φ19
295
8-φ19
295
8-φ23
295
12-φ23
250
250
±12
220
305
107
202
60
320
335
12-φ19
350
12-φ19
350
12-φ23
355
12-φ28
300
270
±15
245
350
126
220
93
320
395
12-φ23
400
12-φ23
400
12-φ23
410
12-φ28
350
290
±15
278
385
126
220
93
320
445
12-φ23
460
12-φ23
460
16-φ23
470
16-φ28
400
310
±15
306
435
157
287
123
400
495
16-φ23
515
16-φ23
515
16-φ28
525
16-φ31
450
330
±15
346
490
157
287
123
400
550
16-φ23
565
16-φ23
565
20-φ28
585
20-φ31
500
350
±20
375
505
165
360
184
390
600
20-φ23
620
20-φ23
620
20-φ28
650
20-φ34
600
390
±20
425
605
165
360
184
390
705
20-φ26
725
20-φ26
725
20-φ31
770
20-φ37
700
430
±20
496
675
195
410
204
500
810
24-φ26
840
20-φ26
840
24-φ31
840
24-φ37
800
470
±30
560
740
195
410
204
500
920
24-φ31
950
24-φ31
950
24-φ34
950
24-φ40
900
510
±30
625
805
235
521
217
500
1020
24-φ31
1050
24-φ31
1050
28-φ34
1050
28-φ40
1000
550
±30
680
865
235
521
217
500
1120
28-φ31
1160
28-φ31
1160
28-φ37
1170
28-φ43
1200
630
±35
800
1065
251
501
290
630
1320
32-φ31
1380
32-φ34
1380
32-φ40
1390
32-φ49
1400
710
±35
920
1207
343
656
312
800
1520
36-φ31
1590
36-φ37
1590
36-φ43
1590
36-φ49
1600
790
±40
1030
1317
370
750
414
800
1730
40-φ31
1820
40-φ37
1820
40-φ49
1820
40-φ56
1800
870
±40
1245
1457
470
800
440
900
1930
44-φ31
2020
44-φ40
2020
44-φ48
2020
44-φ56
2000
950
±50
1290
1625
470
800
440
900
2130
48-φ30
2230
48-φ43
2230
48-φ48
2230
48-φ62
2200
1000
±50
1450
1740
470
800
440
900
2340
52-φ33
2440
52-φ43
2440
52-φ56
2440
52-φ62
2400
1100
±50
1675
1875
480
990
595
1000
2540
56-φ33
2650
56-φ43
2650
56-φ56
2650
56-φ62
2600
1200
±50
1745
2010
480
990
595
1000
2740
60-φ33
2850
60-φ48
2850
60-φ56
2850
60-φ62
2800
1300
±50
1818
2100
480
990
595
1000
2960
64-φ36
3070
64-φ48
3070
64-φ56
3070
64-φ70
3000
1400
±50
1910
2200
480
990
595
1000
3160
68-φ36
3290
68-φ48
3290
68-φ62
3300
68-φ70
Note:
1. For detailed valve dimensions and installation requirements, including standpipe and pipeline network components, please request them from the company.
2. Our company can design and manufacture valves individually according to your requirements, but this must be specified in the contract.
3. The H2 in the table can be lengthened according to user requirements (extended-stem butterfly valve).
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