Small Pneumatic Butterfly Valve , Flow Control 4 Inch Butterfly Valve
Pneumatic Butterfly Valve Specifications:
SCARTAMENTO: EN 593 EN 558-1 Serie20
FLANGE: EN 1092-2
FLANGIA SUPERIORE: ISO 5211
Size: DN40 - 1800
Temperature: -15℃ - 150℃
Pressure: 1.0MPa/1.6MPa
Pneumatic Butterfly Valve Materials
Materials of Body : Ductile Iron (GGG40, GGG50). Cast Iron (GG25), Stainless Steel
Materials of Disc : Stainless Steel. Nickel Plated, Ductile Iron, Ductile Iron Coated Plastic,
Titanium Steel, Copper Alloy etc
Materials of Seat : Ethylene-Propylene-Diene Monomer (EPDM), Polytetrafluoroethylene (PTFE),
Nitrile Rubber (NBR), Chloroprene, Chlorosulfonated Polyethylene (Hypalon),
Silicon, Fluoroelastomer (VITON) , Caoutchouc etc.
Materials of Stem : Stainless Steel. Carbon Steel ,2Cr13
A butterfly valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe.
The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe.
The plate has a rod through it connected to an actuator on the outside of the valve. Rotating the actuator turns the
plate either parallel or perpendicular to the flow. Unlike a ball valve, the plate is always present within the flow,
therefore a pressure drop is always induced in the flow regardless of valve position.
Pneumatic Butterfly Valve
DN |
PN |
Connection dimensions(mm) |
|||
L |
D |
D1 |
Zφd |
||
40 |
1.0/1.6 |
43 |
145 |
110 |
4-18 |
50 |
43 |
165 |
125 |
4-18 |
|
65 |
46 |
185 |
145 |
4-18 |
|
80 |
46 |
200 |
160 |
4-18/8-18 |
|
100 |
52 |
220 |
180 |
8-18 |
|
125 |
56 |
250 |
210 |
8-18 |
|
150 |
56 |
285 |
240 |
8-22 |
|
200 |
60 |
340 |
295 |
8-22/12-22 |
|
250 |
68 |
395/405 |
350/355 |
12-22 |
|
300 |
78 |
445/460 |
400/410 |
12-22 |
|
350 |
1.0 |
78 |
505 |
460 |
16-22 |
400 |
102 |
565 |
515 |
16-26 |
|
450 |
114 |
615 |
565 |
20-26 |
|
500 |
127 |
670 |
620 |
20-26 |
|
600 |
154 |
780 |
725 |
20-30 |
|
700 |
165 |
895 |
840 |
24-30 |
|
800 |
190 |
1015 |
950 |
24-33 |
|
900 |
203 |
1115 |
1050 |
28-33 |
|
1000 |
216 |
1230 |
1160 |
28-39 |
|
1200 |
254 |
1455 |
1380 |
32-39 |
|
1200 |
0.6/0.25 |
254 |
1400/1375 |
1340/1320 |
32-34/32-30 |
1400 |
279 |
1620/1575 |
1560/1620 |
36-34/36-30 |
|
1600 |
318 |
1820/1785 |
1760/1730 |
40-34/40-30 |
|
1800 |
356 |
2045/1985 |
1970/1930 |
44-41/44-30 |
|
2000 |
406 |
2265/2185 |
2180/2130 |
48-48/48-30 |