Butterfly valve is mainly consisted of body, stem, disc, seat and driver (lever, gearbox, pneumatic and electric actuator) and so on. On-off and controlling flow of valve are made by turning stem and disc together. Features as following:
5.Flow curve tending to straight line. Excellent regulation performance.
Main Performance Parameters
Nominal Diameter |
DN40(1.5″)~DN1000(40″) |
mm(inch) |
||
Nominal Pressure |
PN10 |
PN16 |
MPa |
|
Test Pressure |
Sealing |
1.1 |
1.76 |
|
Shell |
1.5 |
2.4 |
||
Working Temperature |
-15~+150(C) |
|||
Suitable Medium |
Fresh water, Sewage, Sea water, Air, Vapour, Food, Medicine, Oils, Acids, Alkalis etc.. | |||
Actuator |
Lever, Gear box, Pneumatic or Electric actuator |
Connection Dimensions
Size |
A |
B |
C |
D |
L2 |
n-D1 |
D2 |
D3 |
D4 |
a° |
Φd1 |
k |
IXI |
F |
|
DN40 |
1.5” |
136 |
69 |
32.0 |
42.6 |
32 |
4-7 |
50 |
77 |
35 |
45 |
12.6 |
3 |
9×9 |
10 |
DN50 |
2” |
161 |
80 |
42.0 |
52.9 |
32 |
4-7 |
50 |
77 |
35 |
45 |
12.6 |
3 |
9×9 |
10 |
DN65 |
2.5” |
175 |
89 |
44.7 |
64.5 |
32 |
4-7 |
50 |
77 |
35 |
45 |
12.6 |
3 |
9×9 |
10 |
DN80 |
3” |
181 |
95 |
45.2 |
78.8 |
32 |
4-7 |
50 |
77 |
35 |
45 |
12.6 |
3 |
11×11 |
10 |
DN100 |
4” |
200 |
114 |
52.1 |
104 |
32 |
4-10 |
70 |
92 |
55 |
22.5 |
15.77 |
5 |
11×11 |
12 |
DN125 |
5” |
213 |
127 |
54.4 |
123.3 |
32 |
4-10 |
70 |
92 |
55 |
22.5 |
18.9 |
5 |
14×14 |
14 |
DN150 |
6” |
226 |
139 |
55.8 |
155.6 |
32 |
4-10 |
70 |
92 |
55 |
22.5 |
18.9 |
5 |
14×14 |
14 |
DN200 |
8” |
260 |
175 |
60.8 |
202.5 |
45 |
4-12 |
102 |
115 |
70 |
15 |
22.1 |
5 |
17×17 |
17 |
DN250 |
10” |
292 |
203 |
65.6 |
250.5 |
45 |
4-12 |
102 |
115 |
70 |
15 |
28.45 |
8 |
22×22 |
22 |
DN300 |
12” |
337 |
242 |
76.9 |
301.6 |
45 |
4-12 |
102 |
140 |
70 |
11.25 |
31.6 |
8 |
22×22 |
24 |
DN350 |
14” |
368 |
267 |
76.9 |
333.5 |
45 |
4-12 |
102 |
140 |
70 |
11.25 |
31.6 |
8 |
22×22 |
24 |
DN400 |
16” |
400 |
309 |
85.7 |
389.6 |
52/72 |
4-18 |
140 |
197 |
100 |
11.25 |
33.1/37.9 |
10 |
27×27 |
27 |
DN450 |
18” |
422 |
328 |
104.6 |
440.5 |
52/72 |
4-18 |
140 |
197 |
100 |
11.25 |
38/42.9 |
10/12 |
27×27 |
27 |
DN500 |
20” |
480 |
360 |
130.3 |
491.6 |
64/82 |
4-18 |
140 |
197 |
100 |
9 |
41.1/45.7 |
10/12 |
36×36 |
32 |
DN600 |
24” |
562 |
460 |
151.4 |
592.5 |
70/82 |
4-23 |
165 |
276 |
130 |
9 |
50.6/54 |
16 |
36×36 |
36 |
DN700 |
28” |
624 |
520 |
163 |
695 |
66/82 |
8-18 |
254 |
300 |
200 |
7.5 |
55/63.5 |
18 |
||
DN750 |
30” |
660 |
560 |
167 |
744.4 |
66/82 |
8-18 |
254 |
300 |
200 |
7.5 |
55/63.5 |
18 |
||
DN800 |
32” |
672 |
591 |
188 |
794.7 |
66/82 |
8-18 |
254 |
300 |
200 |
7.5 |
55/63.5 |
18 |
||
DN900 |
36” |
720 |
656 |
203 |
864.7 |
118 |
8-18 |
254 |
300 |
200 |
6.4 |
75 |
20 |
||
DN1000 |
40” |
800 |
722 |
216 |
965 |
141 |
8-18 |
254 |
300 |
200 |
6.4 |
85 |
22 |
Material of main parts
No. |
Item |
Material |
Specification |
1 |
Body |
Cast iron |
ASTM A126 CL.B/GG25 |
Ductile iron |
ASTM A536 65-45-12/GGG40 |
||
Carbon steel |
ASTM A126 WCB |
||
Stainless steel |
ASTM A351 CF8/CF8M |
||
Bronze |
ASTM B148 C954 |
||
2 |
Disc |
Ductile iron |
ASTM A536 65-45-12/GGG40 |
Carbon steel |
ASTM A126 WCB |
||
Stainless steel |
ASTM A351 CF8/CF8M |
||
Bronze |
ASTM B148 C954 |
||
3 |
Stem |
Stainless steel |
Astm a182 304/316/410 |
Alloy steel |
Monel K500 |
||
4 |
Seat |
Elastomer |
|
EPDM |
-15~+140(C) |
||
NBR |
-10~+80(C) |
||
Viton |
-20~+150(C) |
||
PTFE |
-15~+205(C) |
||
5 |
Bushing |
PTFE |
|
Bronze |