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Product Name:BS 5155(Short Size)Flanged Double-eccentric Butterfly Valve
Flange Type Double-eccentric Butterfly Valve
Specification
Structre type: Double-eccentric Butterfly Valve
Design standard: BS 5155
Flange connection dimension: BS 4504 PN16,DIN 2533 PN16
Structure length: BS 5155-short size
Pressure test:  BS 5155
 
Application
1. The materials of parts are selected excelletly
2. This valve adopts double-eccentric construction.Small friction of Seat and torque during opening orclosing.
3. The disk is trussframed with plates and flow resistant is lower.
4. It has reliable sesling structure for two-way stoping without leakage.
5. The rubberfly sealring could be replaced on pipeline without removing the valve( DN>700)
6. The axle sleeves are selflubricated beaing, oiling is out need and friction drag is small  during operation.
 
Materials
NO.
Part Name
Material
1
Bolt
WCB
2
End Cover
WCB
3
O-Ring
EPDM/NBR
4
Bushing
PTFE/Brass
5
Body
GG25/GGG40
6
Down Stem
SS416/SS304
7
Disc Pin
SS304
8
Disc
GGG40
9
Retaining Ring
GGG40
10
Rubber Sealing
EPDM/NBR
11
Body Sealing Ring
SS304
12
Stuffing
EPDM/NBR
13
Stuffing Box
Stainless Steel
14
Up Stem
SS416/SS304
15
Manual Actuator
Assembly
 
Dimensions
Size
L
D
D1
D2
b
n-?d1
H1
H2
B1
B2
B3
B4
KG
DN100
127
220
180
158
24
8-18
210
295
125
87
105
341
60
DN150
140
285
240
212
26
8-23
210
295
125
87
105
341
85
DN200
152
340
295
268
30
8-23
220
315
125
87
105
341
95
DN250
165
405
355
320
32
12-27
235
330
125
87
105
341
126
DN300
178
460
410
378
32
12-27
284
349
125
87
105
341
142
DN350
190
520
470
438
36
16-27
319
390
180
140
155
420
190
DN400
216
580
525
490
38
16-30
345
415
180
140
155
420
245
DN450
222
640
585
548
40
20-31
382
519
175
126
133
395
280
DN500
229
715
650
610
42
20-33
420
489
190
146
173
490
370
DN600
267
840
770
725
48
20-36
476
563
190
146
173
490
496
DN700
292
910
840
793
54
24-36
550
630
216
183
212
505
715
DN750
318
975
900
844
54
24-36
580
665
216
183
212
505
865
DN800
318
1025
950
900
58
24-39
600
678
216
183
212
505
930
DN900
330
1125
1050
1000
62
24-39
665
838
258
253
253
518
1030
DN1000
410
1255
1170
1116
66
28-42
775
960
258
253
253
518
1796
DN1100
470
1355
1280
1218
66
32-43
860
1077
287
270
270
580
2026
DN1200
470
1485
1390
1330
66
32-49
910
1127
287
270
270
580
2157
DN1400
530
1685
1590
1530
66
36-49
985
1146
515
405
420
725
3300
DN1600
600
1930
1820
1750
70
40-56
1190
1559
515
405
420
725
5300
DN1800
670
2130
2020
1950
70
44-56
1420
1975
708
585
615
928
7575
DN2000
760
2345
2230
2150
75
48-62
1615
2085
708
585
615
928
10500
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