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57 cone fan

●The fan can run for a long time under a negative pressure of 100 Pa, and has a strong pressure resistance;

●The permanent magnet motor and control part are integrated, with a motor efficiency of 91.2%, which is efficient and energy-saving;

●Speed regulation: Through the 0-10 V signal, the stepless speed regulation of motor can be achieved, with a range of 215 rpm-750 rpm;

●The motor is designed with wide voltage, which can adapt to the voltage range of 340 V-460 V and run for a long time;

●It is fully plastic, which is corrosion-resistant, rust-free, weather-resistant and anti-aging;

●The direct drive transmission has a high efficiency, and daily maintenance such as belt tensioning maintenance is not required;

●The opening and closing of butterfly sheet is driven by an electric valve, showing a good sealing effect.

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