Fengda----15 years are absorbed in fan manufacture in China, Radial fan,centrifugal ventilator and centrifugal blower. Radial fan, centrifugal ventilator and centrifugal blower ... , power input and total efficiency. In general, the 3-phase motors are designed for 230/400VAC, as of motor size 74 ... as guard grilles, wall rings, basket grilles, capacitors etc. Blower, ac centrifugal fan blower