(F) ZKJWdy-1 (F) ZDTWdy-1 (F) SWdy-1 circular (square and rectangular) electric, manual multi-leaf multi-leaf butterfly butterfly round my factory is a new product developed jointly with research institutes, and adopted identification, and open and close to regulate air, smoke, dust and gas and combustible gases and reliable equipment, round multi-leaf butterfly can support various combinations of actuator valves into different performance leaves much noise, light weight, torque, flow capacity, easy to operate, cheap, especially for large-diameter, high-volume, low dropout occasions. Round multi-leaf butterfly valve with electric blinds supporting electric actuators are widely used in building materials, metallurgy, mining, electricity and other production processes, automatic or manual control can be adjusted with the pipeline medium flows. Butterfly valve using blinds multiaxial structure, liquid uniform, hoisting force uniform, sensitive, and reliable performance. Round multi-leaf butterfly valve blinds parameters: Nominal pressure: 0.1MPa Temperature: -20-300 ℃ Leakage rate: ≤ 3% common type of low leakage rate: ≤ 1% Applicable medium: air, smoke, dust-containing gas, flammable gas supply voltage: 220V or 380V · AC input signal :0-10 (4-20) mA · DC or switch signal