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.
（1）Taper Pin Designed Butterfly Valve DN40-DN300
 |
|
Item |
Qty |
Part Name |
|
1 |
1 |
Body |
|
2 |
2 |
Long Bushing |
|
3 |
1 |
Seat |
|
4 |
1 |
Stem |
|
5 |
1 |
Disc |
|
6 |
1~2 |
Taper pin |
|
7 |
1 |
Nameplate |
|
8 |
2 |
Short Bushing |
|
9 |
1 |
“O” Ring |
|
10 |
1 |
Key | |
Structure and Parts List for Taper Pin Designed Butterfly Valve DN40-DN300
Nominal Pressure:PN10/PN16/PN20
（2）Split Stem Designed Butterfly Valve DN40-DN300
 |
|
Item |
Qty |
Part Name |
|
1 |
1 |
Body |
|
2 |
1 |
Seat |
|
3 |
1 |
Lower Stem |
|
4 |
1 |
Disc |
|
5 |
5 |
Short Bushing |
|
6 |
3 |
“O” Ring |
|
7 |
1 |
Upper Stem |
|
8 |
2 |
Roll Pin |
|
9 |
1 |
Nameplate |
|
10 |
1 |
Key | |
Structure and Parts List for Split Stem Designed Butterfly Valve DN40-DN300
Nominal Pressure：PN10/PN16
（3）Throughout Stem without Pin Butterfly Valve DN40-DN300
 |
| Item |
Qty |
Part Name |
|
|
1 |
1 |
Body |
|
2 |
1 |
Lower Stem |
|
3 |
1 |
Seat |
|
4 |
1 |
Stem |
|
5 |
1 |
Disc |
|
6 |
3 |
Short Bushing |
|
7 |
1 |
“O” Ring |
|
8 |
1 |
Roll Pin |
|
9 |
1 |
Nameplate |
|
10 |
1 |
Key | |
Structure and Parts List for Throughout Stem without Pin Butterfly Valve DN40-DN300
Nominal Pressure：PN10/PN16
|
Body |
DISC |
Stem |
Bushing |
Seat |
|
Material
|
Material
|
WorkingTemperature
(℃) |
|
C.I |
DI |
416SS |
Lubricative Bronze |
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℃ |
|
StainlessSteel |
|
|
|
NBR |
-12℃-+82℃ |
|
|
|
|
|
WRR |
-10℃-+50℃ |
|
|
|
|
|
VITON |
-23℃-+150℃ |
|
|
|
|
|
HRR |
-20℃-+150℃ |
|
|
|
|
|
PTFE |
+10℃-+150℃ |
Outline Dimensions for DN40-DN300 Butterfly Valve
|
Valve Size |
Inch mm |
A |
Min. |
B |
C |
D |
E |
F |
|
Long Neck |
Short Neck |
Long Neck |
Short Neck |
|
1 1/2 |
40 |
12.5 |
24.0 |
70.0 |
84 |
150 |
100 |
32 |
252 |
212 |
|
2 |
50 |
52.9 |
32.3 |
76.3 |
89 |
161 |
100 |
32 |
273 |
212 |
|
2 1/2 |
65 |
64.5 |
46.1 |
89.0 |
108 |
175 |
113 |
32 |
296 |
234 |
|
3 |
80 |
78.8 |
64.4 |
103.9 |
120 |
181 |
124 |
32 |
308 |
251 |
|
4 |
100 |
104.0 |
86.3 |
135.0 |
150 |
200 |
152 |
32 |
346 |
298 |
|
5 |
125 |
123.3 |
110.6 |
159.0 |
181 |
213 |
152 |
32 |
372 |
311 |
|
6 |
150 |
155.6 |
134.8 |
188.4 |
208 |
226 |
165 |
32 |
397 |
336 |
|
8 |
200 |
202.5 |
192.4 |
238.1 |
260 |
260 |
205 |
45 |
480 |
425 |
|
10 |
250 |
250.5 |
241.7 |
292.4 |
320 |
292 |
253 |
45 |
540 |
495 |
|
12 |
300 |
301.6 |
291.8 |
344.1 |
375 |
337 |
277 |
45 |
624 |
564 |
|
Valve Size |
Inch mm |
G |
H |
I |
J |
K |
L |
P |
m |
M |
R |
|
1 1/2 |
40 |
33.0 |
35.0 |
12.6 |
77 |
50 |
7 |
4 |
M16 |
19 |
110 |
|
2 |
50 |
42.0 |
45.0 |
12.6 |
77 |
50 |
7 |
4 |
M16 |
19 |
125 |
|
2 1/2 |
65 |
44.7 |
47.6 |
12.6 |
77 |
50 |
7 |
4 |
M16 |
19 |
145 |
|
3 |
80 |
45.2 |
49.0 |
12.6 |
77 |
50 |
7 |
8 |
M16 |
19 |
160 |
|
4 |
100 |
52.1 |
54.7 |
15.8 |
92 |
70 |
10 |
8 |
M16 |
19 |
180 |
|
5 |
125 |
54.4 |
58.0 |
18.9 |
92 |
70 |
10 |
8 |
M16 |
19 |
210 |
|
6 |
150 |
55.8 |
58.6 |
18.9 |
92 |
70 |
10 |
8 |
M20 |
23 |
240 |
|
8 |
200 |
60.6 |
63.4 |
22.1 |
125 |
102 |
12 |
8 |
M20 |
23 |
295 |
|
10 |
250 |
65.6 |
70.0 |
28.5 |
125 |
102 |
12 |
12 |
M20 |
23 |
350 |
|
12 |
300 |
76.9 |
80.1 |
31.6 |
140 |
102 |
12 |
12 |
M20 |
23 |
400 |
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.
Weight for DN40-DN300 Butterfly Valves
|
Valve Size |
PN10/PN16
（Based on different type of body） |
PN20
（Based on different type of body） |
|
Inch |
mm |
WL |
WLs |
WS |
WSs |
LL |
LLs |
WL |
WLs |
WS |
WSs |
LL |
LLs |
|
1 1/2 |
40 |
2.0 |
1.7 |
2.2 |
1.8 |
3.3 |
2.8 |
2.0 |
1.7 |
2.2 |
1.8 |
3.3 |
2.8 |
|
2 |
50 |
2.3 |
2.0 |
2.5 |
2.2 |
3.8 |
3.2 |
2.3 |
2.0 |
2.5 |
2.2 |
3.8 |
3.2 |
|
2 1/2 |
65 |
3.0 |
2.6 |
3.2 |
3.0 |
4.2 |
4.0 |
3.0 |
2.6 |
3.2 |
3.0 |
4.2 |
4.0 |
|
3 |
80 |
3.4 |
2.8 |
3.6 |
3.4 |
4.7 |
4.2 |
3.4 |
2.8 |
3.6 |
3.4 |
4.7 |
4.2 |
|
4 |
100 |
4.7 |
4.5 |
4.9 |
4.6 |
8.5 |
7.2 |
4.7 |
4.5 |
4.9 |
4.6 |
8.5 |
7.2 |
|
5 |
125 |
6.8 |
6.5 |
7.0 |
7.3 |
10.9 |
9.7 |
6.8 |
6.5 |
7.0 |
7.3 |
10.9 |
9.7 |
|
6 |
150 |
7.7 |
7.4 |
7.8 |
7.6 |
14.2 |
12.4 |
9.7 |
9.4 |
9.8 |
9.6 |
16.2 |
11.4 |
|
8 |
200 |
13.2 |
13.0 |
13.2 |
13.1 |
19.5 |
18.8 |
16.3 |
16.1 |
16.3 |
16.2 |
22.6 |
21.9 |
|
10 |
250 |
20.6 |
19.5 |
21.0 |
19.0 |
32.0 |
29.0 |
26.1 |
25.0 |
26.5 |
24.5 |
37.5 |
34.5 |
|
12 |
300 |
28.2 |
24.9 |
32.5 |
29.2 |
40.0 |
36.7 |
34.9 |
31.6 |
39.2 |
35.9 |
46.7 |
43.4 |
BUTTERFLY VALVE
DN40-DN300 Butterfly valve
