4-68ACentrifugal ventilation fan


☆ Purpose of the fan4-68 typecentrifugal fan

It is generally used for indoor ventilation and air exchange in factories or large buildings. It can input and output gas. The gas it transports is air or other non self igniting, non exploding, non entangling, harmless to the human body, and non corrosive to steel materials. The gas shall not contain viscous substances, and the dust and hard particles shall not exceed 150mg/m3. The gas temperature shall not exceed 80 ° C. Other similar performance options can also be selected.
Types of centrifugal fans

centrifugal fan

It can be made into two types: counterclockwise rotation and clockwise rotation. Clockwise rotation of the impeller is called a clockwise cyclone machine, represented by "clockwise", while counterclockwise rotation is called a counterclockwise cyclone machine, represented by "counterclockwise".
The outlet position of the centrifugal fan is represented by the angle of the air outlet of the casing. 4-68 No. 3A~6A are all made into one type at the factory: the adjustment range of the air outlet position is 0 °~255 °, with an interval of 45 °, and the adjustment range of the air outlet position for No. 7C~8C is 0 °~180 °, with an interval of 22.5 °; The positions of the single inlet and double inlet air outlets of No. 10E-20E are made into three fixed types: 0 °, 90 °, and 180 °, which cannot be adjusted. If you want special machine numbers, special outlet angles, and other non labeled items, our factory can also design and manufacture them for you, but please specify them in detail when ordering.
☆ Structure of centrifugal fan
№3A～6Acentrifugal fan
Mainly composed of impeller, casing, air inlet and other parts matched with direct connected motor; In addition to the above-mentioned parts, there is also a transmission part for № 7C-12E.
(1) Centrifugal fan impeller:It consists of 16 backward inclined arc thin plate blades, curved front plate, and flat rear plate, all made of steel plate and calibrated for dynamic and static balance. It has good air performance, high efficiency, and smooth and reliable operation.