Electrical duct butterfly valves, also known as electrical smoke damper doors, are used in smoke and air duct systems for medium cutoff purposes. They feature full open and full close functions, operate reliably, and upon closure, ensure no medium leakage into the pipeline. For conveying non-corrosive or low-corrosive smoke media, carbon steel material can be used for the duct butterfly valve. For conveying corrosive smoke media, stainless steel material can be employed.

Technical specifications of the electric smoke damper door:

Product Model: W×H×L

b. Applicable Media: Cold and hot air, flue gas, or dusty lean gas.

c. Temperature Resistance: ≤400℃

d. Design Pressure Rating: 0.1 MPa

e. Adjusting Performance: Openness and flow are linearly adjusted.

f. Drive Method: Typically, an electric actuator.


g. Power and control requirements: selectable by the user.