Electric multi-layer hard seal butterfly valve seal form is metal to metal seal, can change metal seal ring to metal seal, and stainless steel plate and graphite composite plate seal ring to metal seal. Hard - seal butterfly valve in addition to the driving form: hydraulic, worm rod drive, pneumatic and so on.

The butterfly plate of the electric multi-level hard seal butterfly valve is installed in the diameter direction of the pipe. In the butterfly valve body cylindrical channel, the disc butterfly plate rotates around the axis, the rotation angle is between 0°and 90°, when rotating to 90°, the valve is fully open

The blast furnace three eccentric butterfly valve is suitable for air, flue gas, gas and other medium pipes with a pressure of not more than 0.6mpa below 500 °c, which plays the role of regulating and cutting off. Can be used as hot air system gas cut off valve, air cut off valve, flue gas cut off valve; heat exchanger system gas cut off valve, air cut off valve, flue gas cut off valve; blast furnace blower outlet cut off valve; coke oven gas pipe system valve, etc.