GDF Rectangular Centrifugal Duct Fan

Applications:

The GDF series rectangular centrifugal duct fan is a forward-curved, multi-blade centrifugal fan. It offers good performance, smooth operation, and low noise. At the same airflow and pressure, its noise level is 15–20 dB(A) lower than that of an axial fan. Its compact structure and convenient installation allow it to be connected directly to ductwork. It is suitable for supply and exhaust air systems in a wide range of applications.

Model Designation

Structural Features

(1) The impellers in this series are generally made of steel, though aluminum alloy is available on request. They feature forward-curved blades. The front and rear plates are formed using mechanical dies and checked for static and dynamic balance. The fans operate smoothly and reliably and offer good aerodynamic performance.

(2) The casing and motor support are made of steel plate, formed using mechanical dies and assembled by spot welding. The resulting structure is sturdy, rational, compact, and visually attractive.

(3) The motor is a single-support external-rotor motor, with the impeller mounted on the motor housing. The motor is secured to the motor support, which is attached to the reinforced top plate of the casing. As the motor housing rotates, it directly drives the impeller.

Performance and Selection

(1) Gases conveyed: air and other non-combustible, non-harmful, non-corrosive gases that do not corrode steel.

(2) Impurities in the gas: The gas must not contain sticky substances. Dust and hard particles must not exceed 120 mg/m.

(3) Gas temperature: -20℃~80℃.

GDF2.5-8

GDF3.0-8

GDF4.0-8