Product Description
The butterfly valve, also known as the flap valve, is a simple regulating valve. The butterfly valve that can be used for the switching control of the low-pressure pipeline medium means that the closing member (valve or disc) is a disc that rotates around the valve shaft to achieve opening and closing.
Product Specification
|
No. |
Item |
Materical |
Symbol |
|
1 |
Body |
Cast iron |
ASTM A 126 CL.B/GG25 |
|
|
|
Ductile iron |
ASTM A536 65-45-12/GGG40 |
|
|
|
Carbon steel |
ASTM A216 WCB |
|
|
|
Stainless steel |
ASTM A351 CF8/CF8M |
|
2 |
Disc |
Ductile iron |
ASTM A536 65-45-12/GGG40 |
|
|
|
Stainless steel |
ASTM A351 CF8/CF8M |
|
|
|
Bronze AL-Bronze |
ASTM B148 C954 |
|
3 |
Seat |
Elastomer |
Working Temperature |
|
|
|
EPDM |
-15℃-140℃ |
|
|
|
NBR |
-10℃-80℃ |
|
|
|
VITON |
-20℃-150℃ |
|
4 |
Stem |
Stainless steel |
ASTM A182 304/316/416 |
|
5 |
Bushing |
PTFE |
|
|
|
|
Bronze |
|
Overall Dimension
|
Nominal Diameter |
A |
B |
E |
D |
D1 |
D2 |
D3 |
D4 |
d |
|
DN50 |
80 |
161 |
32 |
52.6 |
50 |
7 |
65 |
35 |
12.6 |
|
DN65 |
89 |
175 |
32 |
64.3 |
50 |
7 |
65 |
35 |
12.6 |
|
DN80 |
95 |
181 |
32 |
78.8 |
50 |
7 |
65 |
35 |
12.6 |
|
DN100 |
114 |
200 |
32 |
104 |
70 |
10 |
90 |
55 |
15.77 |
|
DN125 |
127 |
213 |
32 |
123.3 |
70 |
10 |
90 |
55 |
18.92 |
|
DN150 |
139 |
226 |
32 |
155.7 |
70 |
10 |
90 |
55 |
18.92 |
|
DN200 |
175 |
260 |
45 |
202.41 |
102 |
12 |
125 |
70 |
22.1 |
|
DN250 |
203 |
292 |
45 |
250.42 |
102 |
12 |
125 |
70 |
28.45 |
|
DN300 |
242 |
337 |
45 |
301.5 |
102 |
12 |
125 |
70 |
28.45 |
The dimensions N-M,D5,D6.Conforms to EN1092-2,ISO7005-2,the specific dimensions for different standards are available in need.
