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BUTTERFLY VALVE
DN40-DN300 Butterfly valve
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DN550-DN1000 Single Flange Butterfly Valve
DN700-DN1200 U-Section Butterfly Valve
DN50-DN150 Thread End Butterfly Valve
DN50-DN300 Groove End Butterfly Valve
DN50-DN1200Flange Type Butterfly valve
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DN50-DN800 Wafer Type Dual-Plate Check valve
DN15-DN400 Wafer Type Single-Plate Check Valve
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HomeProducts   → BUTTERFLY VALVE  → DN550-DN1000 Single Flange Butterfly Valve
DN550-DN1000 single flange butterfly valve
 
 
Medium Capability:
Freshwater, Sea water, Air, steam, food, medicine and kinds of oil, acid, alkali, salt.
Feature:
Long service life with reliable seal and without frequent maintenance. Butterfly valve have flow characteristics three times better than globe valve, and about 75% of a same size gate valve。Butterfly valve can be used for on/off service and throttling,They are superior in Multi-function as compared to gate or globe valves. Butterfly valve can be widely used in chemical field due to trim options and choice of elastomeric liner .
Butterfly valve have feature of light in weight and small in size, for example, weight andsize of a 10” butterfly valve are 1/9 and 1/6 of a 10” gate valve. So butterfly valve is easy to install and save cost of piping system. Butterfly valve with resilient seat design can be bubble tight as compared to metal seated gate or globe valves. Butterfly valves offer 90-degree open to close. Butterfly valve is approximate 35-40% cost of a same size gate valve. Also low installed cost than gate valve. 
Properly installed butterfly valves are self cleaning and are less susceptible to failure due to trash material in pipe.
   
   
Item
Qty
Part Name
1
4
Hex Bolts
2
1
“O”Ring
3
1
Bottom Cover
4
1
AdjustingGesket 
5
1
Ball 
6
1
Body
7
1
Lower Bushing
8
1
Disc
9
1
Stem
10
2
Taper Pin
11
1
Seat
12
1
Mid Bushing
13
1
Nameplate
14
2
Upper Bushing
15
1
“O”Ring
16
1~2
Key
Structure and Parts List for Single Flange Butterfly Valve
 Nominal PressurePN10
 
Body
DISC
Stem
Bushing
Seat
Material
 
Material
 
WorkingTemperature
(℃)
C.I
DI
416SS
LubricativeBronze
NR
-20℃-+85℃
D.I
WCB
431SS
Macromolecule+PTFE
HYPALON
-18℃-+135℃
WCB
AL-Brz
316SS
316SS+PTFE
EPDM
-30℃-+110℃
AL-Brz
Stainless Steel
 
 
NEOPRENE
-7℃-+93℃
Stainless Steel
 
 
 
NBR
-12℃-+82℃
 
 
 
 
WRR
-10℃-+50℃
 
 
 
 
VITON
-23℃-+150℃
 
 
 
 
HRR
-20℃-+150℃
 
 
 
 
PTFE
+10℃-+150℃

Outline Dimensions and Weight for DN550-DN1000 Butterfly Valve
 
Valve Size
A
B
C
N
D
E
F
G
H
Inch
mm
22*
550 *
972
537
50.62
20
33
66
680
745
276
24
600
1021
562
50.62
20
31
66
725
824
276
26*
650 *
1063
591
63.35
24
33
66
780
845
300
28
700
1144
624
63.35
24
31
66
840
895
300
32
800
1263
672
63.35
24
34
66
950
1015
300
34 *
850 *
1294
695
75.00
28
33
118
1000
1070
300
40
1000
1521
800
85.00
28
37
141
1160
1230
300
 
 
Valve Size
I
J
K
L
M
d
P
T
Weight
Kgs.
Inch
mm
22*
  550 *
165
529.9
542.5
151.4
4
22
156
30
175
24
600
165
571.6
592.5
151.4
4
22
156
30
188
26 *
  650 *
254
625.9
647.3
165.0
8
18
171
30
271
28
700
254
675.6
695.0
163.0
8
18
169
30
284
32
800
254
772.1
795.0
188.0
8
18
195
30
368
34 *
  850 *
254
796.2
814.7
203.0
8
18
211
47
685
40
1000
254
940.5
965.0
216.0
8
18
224
50
864

Note:
Dimensions for mounting flange above mentioned conform BS4504 PN10, and top mounting conform to ISO5211. When required, standards from other countries or any special requirements are also available.(Mounting Flange of Valve Size with '*' conform JIS B2220 10K).