4-2×79 High Quality Double-Suction Centrifugal Fan

* Model No.5E~20E of 4-2×79 double-inlet centrifugal fan is assembled with double-sided air intake structure, paired backward curved airfoil impeller, integral thick steel welded volute casing and belt-driven matched motor assembly. ·

* The dual impeller is equipped with sets of backward curved high-efficiency blades plus front and intermediate wheel disc; all impeller components pass precise static & dynamic balance calibration for stable low-vibration continuous running. ·

* These industrial double-suction ventilation blowers are manufactured with premium carbon steel sheet, optimized dual-flow inner runner greatly reduces airflow resistance loss and realizes large-volume air delivery with high efficiency and low noise. ·

* The split integral fan casing is designed for convenient internal inspection and impeller maintenance; double-side symmetric circular air inlets guarantee even air inflow from both ends of impeller to improve overall ventilation efficiency. ·

* Belt pulley transmission layout features compact structure and flexible speed matching, facilitating routine belt replacement and motor overhaul.

4-2×79 Model Features:

Material Properties

Featured by ultra-large air volume, stable pressure output and reliable operating performance, 4-2×79 double suction fans serve as ideal air supply & exhaust equipment for factory workshop ventilation, central air conditioning unit, high-rise building and large public construction indoor air exchange system.

All E-type specifications can be fitted with standard Y-series three-phase asynchronous motor; B-4-2×79 explosion-proof variant configured with YB flameproof motor is available upon request for flammable volatile waste gas exhausting working condition.

F-4-2×79 full stainless steel anti-corrosion customized version is specially produced for corrosive waste gas conveying, retaining identical airflow parameters and foundation mounting dimension as standard carbon steel 4-2×79 fan.

Benefits

Standard 4-2×79 fan is applicable for conveying clean non-corrosive, non-self-combustion harmless ambient air; explosion-proof B-4-2×79 can handle ventilation and exhaust of volatile flammable industrial gas. The transported medium shall exclude sticky adhesive substance, dust and hard particulate content ≤150mg/m³ and medium operating temperature shall not exceed 80℃.

Fan Structure

B-4-2×79 explosion-proof double suction centrifugal fan shares consistent technical performance, parameter selection standard, overall outline dimension and foundation installation size with ordinary standard 4-2×79 fan, only the driving motor is replaced with explosion-proof specification.

Model Selection

The series covers rotating speed ranging from 330r/min up to 1800r/min with matched power from 2.2kW up to 200kW, diversified speed-power collocation forms wide flow and full pressure scope to satisfy large-space air exchange and pipeline ventilation demands.