Φ 250 Centrifugal fan with backward impeller

Centrifugal Fans use AC capacitors to operate asynchronous motors, which are divided into two categories: Inner Rotor and Outer Rotor. The fan has two modes of speed control, which are controlled by thyristor step-less speed regulation and motor winding tapping.
The conventional three-speed adjustment speed; the use of advanced technology to design the fan, with the advantage of convenient installation reliable operation, low noise, large air volume,energy-saving, and high efficiency; superior to similar products; has the advantage of cheap high quality.
This series of centrifugal fans are mainly used for ventilation and air exchange of various equipment such as FFU Fan, Air Purification Fan, Outer Rotor Centrifugal Fan, etc.
Centrifugal Fans use AC capacitors to operate asynchronous motors, which are divided into two categories: Inner Rotor and Outer Rotor. The fan has two modes of speed control, which are controlled by thyristor step-less speed regulation and motor winding tapping.
The conventional three-speed adjustment speed; the use of advanced technology to design the fan, with the advantage of convenient installation reliable operation, low noise, large air volume,energy-saving, and high efficiency; superior to similar products; has the advantage of cheap high quality.
This series of centrifugal fans are mainly used for ventilation and air exchange of various equipment such as FFU Fan, Air Purification Fan, Outer Rotor Centrifugal Fan, etc.
Type Voltage Frequency Current Input Speed Capacitance Net Weight Noise Max airflow Curve
（V） （HZ） (A) （W） (r/min) (μ F) （kg） (dBA) （m±/h） (#)
YWF-4E-250A 230 50 0.32 65 1400 3 3.2 56 830 ①
YWF-2D-250B 230 50 0.85 140 2500 3 3.2 74 1580 ②
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