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Electric adjustable center line butterfly valve Also known as flap valve, the electric butterfly valve is a control valve with simple structure, it can be used to control the opening and closing media of low pressure line after connecting with the actuator. It is mainly used for cutting and throttling actions on the pipeline. The opening and closing part of butterfly valve is a disc shaped disc plate, it can rotate round its axis within valve body so as to achieve the purpose of opening and closing or controlling. With the features of small starting torque, large flow capacity, little flow resistance loss and flexible operation, it is suitable for workplaces of blast furnace, heating furnace, gas station in metallurgy industry, light industry and other industries.   
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Main Technical Parameters
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Nominal diameters DN(mm) |
50~2400 |
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Nominal pressure PN (MPa) |
Low pressure: <1.6 Intermediate pressure: 2.5 |
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Materials of valve body |
ZG230~450 |
ZG1Cr18Ni9 |
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Materials of valve plate |
ZG230~450 |
ZG1Cr18Ni9 |
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Operating temperature t (℃) |
-40~345 |
-40~600 |
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Valve plate type |
Flat plate |
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Connection type |
Flange type and wafer type |
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Corner of valve plate |
0~90° adjustable |
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允Allowable leakage rate |
≤1.5% X Cv |
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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.