I. Introduction
I plant a single eccentric by streamlined design flange butterfly valve, butterfly valve to overcome the friction of ordinary large, difficult to remove, and large water loss defects. Can be widely used in water supply and drainage, construction, air conditioning, sewage, petroleum, chemical, pharmaceutical, textile, water pipelines and other systems for cut-off and regulation.
Second, characteristics
1. Disc use a streamlined, truss design, can greatly reduce the fluid resistance.
2. Sealing butterfly valve seat directly on the board, do not remove the valve stem can be replaced.
3. Using a single eccentric structure, reduces friction sealing seat.
4. The overall epoxy powder paint, as long as the replacement of the valve seat seal material can be applied to different media.
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3. Main Specifications
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4. The main part materials
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Pressure rating: 1.0MPa, 1.6MPa
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Serial number
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Name
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Material
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Body pressure: 1.5MPa, 2.4MPa
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1
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Body, the disc
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Gray cast iron or ductile iron
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Seal test: 1.1MPa, 1.76MPa
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2
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Valve rod
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Stainless steel
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Operating Temperature: 0∼80℃
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3
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Seal seat
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Rubber
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Suitable medium: water, gas
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Five dimensions
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Nominal pressure
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Nominal Path
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Size (mm)
|
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PN(MPa)
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DN(mm)
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L
|
φD1
|
φD
|
Z-φd
|
φD2
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L1
|
H1
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H2
|
H3
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H4
|
H5
|
H6
|
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1.0
|
50
|
108
|
125
|
165
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4-18
|
102
|
154
|
228
|
310
|
256
|
338
|
342
|
424
|
|
65
|
112
|
145
|
185
|
4-18
|
122
|
154
|
240
|
333
|
276
|
358
|
356
|
448
|
|
80
|
114
|
160
|
200
|
8-18
|
133
|
154
|
323
|
423
|
313
|
413
|
368
|
468
|
|
100
|
127
|
180
|
220
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8-18
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158
|
154
|
330
|
440
|
318
|
428
|
411
|
521
|
|
125
|
140
|
210
|
250
|
8-18
|
184
|
154
|
330
|
455
|
318
|
444
|
412
|
537
|
|
150
|
140
|
240
|
285
|
8-22
|
212
|
154
|
368
|
510
|
411
|
553
|
506
|
648
|
|
200
|
152
|
295
|
340
|
8-22
|
268
|
238
|
444
|
614
|
508
|
678
|
524
|
694
|
|
250
|
165
|
350
|
395
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12-22
|
320
|
238
|
478
|
680
|
545
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742
|
557
|
754
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300
|
178
|
400
|
445
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12-22
|
370
|
227
|
546
|
776
|
581
|
803
|
565
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787
|
|
350
|
190
|
460
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505
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16-22
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430
|
227
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580
|
840
|
614
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866
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598
|
850
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400
|
216
|
515
|
565
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16-26
|
482
|
270
|
568
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858
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658
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940
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698
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980
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450
|
222
|
565
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615
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20-26
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532
|
280
|
686
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993
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688
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995
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773
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1080
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500
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229
|
620
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670
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20-26
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585
|
338
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702
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1056
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723
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1058
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915
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1250
|
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600
|
267
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725
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780
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20-30
|
685
|
385
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741
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1161
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773
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1163
|
990
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1380
|
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700
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430
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840
|
895
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24-30
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800
|
385
|
873
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1328
|
836
|
1283
|
990
|
1430
|
|
800
|
470
|
950
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1015
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24-33
|
905
|
385
|
931
|
1443
|
891
|
1398
|
1035
|
1540
|
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900
|
510
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1050
|
1115
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28-33
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1005
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545
|
981
|
1543
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941
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1498
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1243
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1800
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1000
|
550
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1160
|
1230
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28-36
|
1110
|
620
|
1026
|
1653
|
993
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1608
|
1750
|
2365
|
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1200
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630
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1380
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1455
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32-39
|
1330
|
620
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1140
|
1873
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1123
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1850
|
1856
|
2583
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Nominal pressure
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Nominal Path
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Size (mm)
|
|
PN(MPa)
|
DN(mm)
|
L
|
φD1
|
φD
|
Z-φd
|
φD2
|
L1
|
H1
|
H2
|
H3
|
H4
|
H5
|
H6
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1.6
|
50
|
108
|
125
|
165
|
4-18
|
102
|
154
|
228
|
310
|
256
|
338
|
343
|
424
|
|
65
|
112
|
145
|
185
|
4-18
|
122
|
154
|
250
|
333
|
276
|
358
|
356
|
448
|
|
80
|
114
|
160
|
200
|
8-18
|
133
|
154
|
323
|
423
|
313
|
413
|
368
|
468
|
|
100
|
127
|
180
|
220
|
8-18
|
158
|
154
|
330
|
440
|
318
|
428
|
411
|
521
|
|
125
|
140
|
210
|
250
|
8-18
|
184
|
154
|
330
|
455
|
319
|
444
|
412
|
537
|
|
150
|
140
|
240
|
285
|
8-22
|
212
|
154
|
368
|
510
|
411
|
553
|
506
|
648
|
|
200
|
152
|
295
|
340
|
12-22
|
268
|
238
|
444
|
614
|
508
|
678
|
524
|
694
|
|
250
|
165
|
355
|
405
|
12-26
|
320
|
238
|
478
|
680
|
540
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742
|
557
|
759
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300
|
178
|
410
|
460
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12-26
|
370
|
227
|
546
|
776
|
573
|
803
|
565
|
795
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