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
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.
Wafer Rubber Seated Butterfly Valves
DN
(mm) | PN
(MPa) | 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 |
Product Advantages:
1) Small in size and light in weight and maintaince.
It can be mounted whereever needed.
2) Simple, compact structure, quick 90 degree on-off operation.
3) Disc has two-way bearing, perfect seal, without leakage under
the pressure test.
4) Flow curve tending to straight-line. Excellent regulation
performance.
5) Various kinds of materials, applicable to different medium.
6) Strong wash and brush resistance and can fit to bad working
condition.
