Our hvac booster fan, DC Centrifugal Direct Drive Fan, EC Efficient And Low Noise Centrifugal Ventilator is made of industrial quality, and our quality is beyond your imagination. We are honest and trustworthy, adhere to the principle of equality and mutual benefit and serve you wholeheartedly. We provide good quality but unbeatable low price and the best service. The successful experience of our company is to strictly follow the commercial principle and perfect the market operation principle, which makes our company operate efficiently.
1.CDF series duct fan rated voltage 115V, 127V, 230V, frequency 50/60Hz, air-intake size from 100mm to 315mm. Circular duct fan is an ideal ventilator both on performance and appearance, new-designed case and backward centrifugal impeller combines well. Supply the source power for blower air, exhausting air, returning air and air purification processing, the high air pressure can connect dozens of meters of pipelines and concentrate the air flow of multi-areas, widely used in residential buildings, indoor ventilation or pipe pressure.
2.Range of centrifugal high performance fans to convey in ducts air or fumes with a maximum temperature of 50℃。
3. Complete range of inlet and outlet diameters to allow the installations in most standard sizes of commercial ducts.
4. The range is composed by 7 models either steel type with high performances then plastic type that offers a good noise level and reduction in energy consumption increasing the life of products.
5. All the models mount ball bearing motors with thermal protector.
6. Steel type body, high resistance motor support with incorporated airflow fins. Mounting bracket integrated with the product that allows installation in any position. Holes provided in the bracket allow mounting with cords.
7. Installation and electric connection is particularly fast and easy.
8. Electric boxes with IP54 protection class.
9. Product protection class is IP44.
10. Double insulated product, electric grounding is not necessary.
11. Motor speed can be regulated with an optional electronic regulator.
12. All the models get the UL approval.
Performance parameters



shape and the size of instalaltion

Product feature and application
(1) Product feature:
●Low high rigidity
●high temperature resistant
●Environmental protection
●Large air flow
●Easy installation
●Light weight
●Low noise
(2)Application
Suitable for appliances in domestic, commercial and industrial such as bathrooms, kitchens, offices, factories, supermarket, bars, gymnasiums, restaurants etc…
Prodection details

The future has come, our company will continue to provide high-quality 4 Inch Fresh Air Ventilation Inline Circular Centrifugal Duct Fan according to customer demand. With the improvement of modernization, our economy is becoming integrated and internationalized. Our company has the competitive advantage of high service quality and complete marketing channel structure, and is in a leading position in the industry.
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