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Butterfly ValveHome>Products
Wafer Butterfly Valve
Main parts and materials
|
Part Name
|
Materials
|
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|
Body
|
Cast Iron/Ductile Iron
|
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|
Stem
|
Stainless Steel/Carbon steel
|
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|
Taper Pin
|
Stainless Steel
|
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|
Seat
|
NBR/EPDM
|
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|
Disc
|
Ductile Cast Iron (Nickel plated)/Stainless Steel/Bronze
|
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|
O-Ring
|
NBR, EPDM, Neoprene, Viton;
|
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|
Bushing
|
PTFE, Nylon, Lubricated Bronze;
|
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|
Key
|
Carbon Steel
|
Outline and connecting measurement
|
Size |
Ø
|
d
|
L
|
a︒
|
|
|
40
|
1½
|
110
|
18
|
40.5
|
45︒
|
|
50
|
2
|
125
|
18
|
40.5
|
45︒
|
|
65
|
2½
|
145
|
18
|
43
|
45︒
|
|
80
|
3
|
160
|
18
|
44.2
|
45︒
|
|
100
|
4
|
180
|
18
|
50
|
22.5︒
|
|
125
|
5
|
210
|
18
|
52.5
|
22.5︒
|
|
150
|
6
|
240
|
22
|
54
|
22.5︒
|
|
200
|
8
|
295
|
22
|
59
|
22.5︒
|
|
250
|
10
|
350
|
22
|
63
|
15︒
|
|
300
|
12
|
400
|
22
|
73.3
|
15︒
|
|
350
|
14
|
460
|
22
|
73.3
|
11.25︒
|
|
400
|
16
|
515
|
26
|
84.5
|
11.25︒
|
|
450
|
18
|
565
|
26
|
104
|
9︒
|
|
500
|
20
|
620
|
26
|
130
|
9︒
|
|
600
|
24
|
725
|
30
|
150
|
9︒
|
|
700
|
28
|
840
|
31
|
163
|
7.5︒
|
|
800
|
32
|
950
|
34
|
189
|
7.5︒
|
|
900
|
36
|
1050
|
34
|
203
|
6.43︒
|
|
1000
|
40
|
1160
|
37
|
216
|
6.43︒
|
