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Electric adjustable eccentric butterfly valve Adapting eccentric principle, the linkage mode with upper and lower valve shafts by profiled hole and profiled shaft is adopted on the eccentric butterfly valve, the fluctuation around up and down of butterfly plate with non-pin linkage function can be realized during opening and closing the butterfly plate, it can reduce the interference area between butterfly plate and valve seat, the torque can be greatly decreased, the sealing effect can be enhanced and the controlling, opening and closing function for media inside the process pipe line can be realized when using with the electric actuator. It is widely used in the production process of metallurgy industry, electricity industry, petroleum industry, chemical industry, desulfurization, light industry and other industries. 
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Main Technical Parameters
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Nominal diameters DN(mm) |
40~1600 |
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Nominal pressure PN (MPa) |
低压：<1.6 中压：2.5~4.0 |
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Materials of valve body |
ZG230~450 |
ZG1Cr18Ni9 |
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Materials of valve plate |
Q235-A |
ZG1Cr18Ni9 |
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Operating temperature t (℃) |
-40~345 |
-40~600 |
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Eccentric structure |
Double eccentric, three eccentric |
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Connection type |
Flange type and wafer type |
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Corner of valve plate |
0~90°可调 |
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Allowable leakage rate |
<0.1 X DNmm3/s |
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※ Optional electric actuators |
Integral type, switching value, remote control type, explosion-proof type, integral adjustable type, split control type, etc. (Please refer to the information of actuator for specific option) |
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※ Voltage of power supply |
Domestic Standard: 220V +10-15% ~ 380V +10-10% (50Hz ± 1Hz, linear power supply) Exported product can be customized: 110V ~ 480V (50Hz ~ 60Hz) |
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※ Level of protection |
IP55～IP68 |
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※ Explosion-proof mark |
Exd II BT4 |
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Operation environment |
Environmental temperature -10 ~ 70℃Humidity ≤ 95% No condensation Avoid corrosive gases in the air | |
※ some products can be selected according to conditions on site, if have any doubt, please contact our company.