[ High Efficiency ] High strength impeller optimized by ternary flow CFD fluid simulation technology, reasonably designed flow runner combined with ultra-efficient motor create the high efficiency of the fan.
[ Low Noise ] The designer closely combines aerodynamics and sound source, and makes the blade angle and blade pattern fully adapt to the ternary flow field, which always ensures lower noise at the same air volume.
[ High Reliability ] Motors have F class insulation, and been tested for 3 months of 65℃ high temperature test and 40,000 hours of life test, which ensure worse-free quality.
[ Wide Application ] The products is used wherever outstanding performance is required, for example, fresh air system, greenhouse, ventilation with duct and more.
[ Variety of Models ] Available in dimensions of : 4”~12”, this allows for air flow rates of up to 1490m3/h and static pressure of up to 600Pa.
| Availability: | |
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| Quantity: | |
B190M.A001
EBST
B190M.A001
Product Parameters |
Material: | Impeller:Nylon with Glass Fiber |
Direction of rotation: | Clockwise, seen on rotor |
| Control input: | 0-10VDC/PWM/RS485 |
Type of protection: | IP 55 |
Insulation class: | F |
Bearing: | Maintenance-free Ball bearings |
Approval: | CQC |
Amb.Temp: | -25~+60℃ |
Model | Curve | Voltage [V] | Frequency [Hz] | Speed [rpm] | Max Power [W] | Max Airflow [m3/h] | Noise [dB(A)] |
4. in B190M.A001 | A | 220 | 50 | 2335 | 50 | 235 | 64.3 |
| B | 220 | 50 | 2095 | 44 | 180 | 58 |
![]() | Ps [Pa] | Airflow [m3/h] | Speed [rpm] | Power [W] | ||
A | ① | 0 | 235 | 2335 | 50 | |
② | 40 | 200 | 2355 | 49 | ||
③ | 80 | 170 | 2385 | 48 | ||
④ | 0 | 180 | 2095 | 44 | ||
| B | ⑤ | 20 | 160 | 2120 | 44 | |
| ⑥ | 45 | 140 | 2150 | 43 | ||

Application Scenarios |
Residential Application
AC circular in-line duct fans are suitable for household kitchens, bathrooms, cloakrooms, storage rooms, basements and other spaces. They can efficiently exhaust oil fumes, moisture, odors and stale air, achieving indoor and outdoor air circulation. The product can be concealed in ceilings or ducts without occupying space, featuring stable operation and low noise, providing a comfortable, dry and clean ventilation effect for residential environments.
Office Buildings and Workplaces
In office buildings, offices, meeting rooms, corridors and other places, AC circular in-line duct fans can be used with fresh air systems or independent ducts to realize continuous air exchange and air pressure boosting, improve indoor air quality, and remove carbon dioxide, odors and stuffy air. With low noise and high static pressure, they can meet the requirements of long-term and stable operation in office environments and enhance space comfort.
Hotels and Guesthouses
Hotel guest rooms, corridors, bathrooms and back-of-house areas have high requirements for quiet ventilation. With smooth operation, low vibration and low noise, AC circular in-line duct fans can be concealed in ceilings and ducts to effectively improve indoor air circulation, remove odors and moisture, enhance guest experience, and meet the overall decoration and quiet environment requirements of hotels.
Green Agriculture Applications
AC circular duct fans are widely used in green agriculture scenarios such as greenhouses, livestock and poultry breeding, and edible fungus cultivation. They can provide ventilation, air exchange, temperature and humidity control, as well as air circulation, improve the planting and breeding environment, reduce the risk of diseases and epidemics, adapt to the duct layout of various agricultural facilities, and support the efficient and standardized production of green agriculture.
Product Certificate |
UL Certification
UL is an authoritative safety certification for the North American market. It certifies that the AC circular duct fan complies with core North American standards for electrical safety, fire resistance and operational reliability. Suitable for ventilation projects in the United States, Canada and other regions, it reduces overseas safety and compliance risks and earns recognition from international customers.
CE Certification
CE is a mandatory conformity mark for the EU market. The AC circular duct fan meets key EU regulations including low voltage, electromagnetic compatibility and mechanical safety, covering the three dimensions of safety, health and environmental protection. It can be freely circulated and used throughout the 27 EU member states and the European Economic Area.
CCC Certification
CCC is a statutory mandatory certification for electrical products in China. It confirms that the AC circular duct fan fully meets national mandatory standards for electrical safety, structural strength and electromagnetic compatibility. It can be legally applied in various industrial and commercial ventilation and heat dissipation scenarios across China, ensuring safe and reliable equipment operation.
CQC Certification
CQC is a leading voluntary quality certification in China. It highlights the core advantages of the AC circular duct fan, such as high energy efficiency, stable operation and long service life. Ideal for high-end commercial and demanding industrial ventilation applications, it enhances brand quality competitiveness and improves acceptance in project selection.
RoHS Certification
RoHS is a key EU environmental certification that restricts the use of six hazardous substances including lead and mercury. The AC circular duct fan uses eco-friendly raw materials and compliant manufacturing processes, making it suitable for clean and high-demand ventilation scenarios such as medical, electronics and food industries, and fully meeting EU environmental requirements.
Reach Certification
REACH is a core EU standard for chemical substance compliance. It strictly controls the content of Substances of Very High Concern (SVHC) in the AC circular duct fan, with no risk of excessive substances. The product can enter the EU and European Economic Area without barriers, in line with the global trend of green industrial development.
FAQ |
Q1: Where can the AC circular in-line duct fan be used?
A1: It covers five core scenarios:
Residential homes: kitchens, bathrooms, cloakrooms, storage rooms, basements for removing oil fumes, moisture, odors and stale air;
Office places: office buildings, meeting rooms, corridors, supporting fresh air systems to boost air volume and improve indoor air quality;
Hotels & guesthouses: guest rooms, corridors, bathrooms and back-of-house areas, meeting high silent ventilation requirements;
Green agriculture: greenhouses, livestock & poultry breeding, edible fungus cultivation for temperature & humidity adjustment and air circulation.
Q2: What are the installation advantages of this duct fan?
A2: It supports concealed installation in ceilings or internal pipelines, occupies no extra indoor space; features stable operation, low noise and low vibration, compatible with daily home, commercial and hotel decoration styles.
Q3: What functions can the fan realize in agricultural scenarios?
A3: It can complete ventilation & air exchange, adjust temperature and humidity, optimize the growing & breeding environment, reduce disease risks, and match the pipeline layout of various agricultural facilities to support efficient standardized production.
Q4: What international certifications does the product have?
A4: It owns global mainstream certifications:
UL Certification (North America): Complies with local electrical safety, fire resistance and reliability standards;
CE, RoHS, REACH Certification (EU): Meets EU safety, EMC, mechanical and environmental protection regulations, with no hazardous substances exceeding standards.
Q5: What domestic Chinese certifications are supported?
A5: It has mandatory CCC Certification (complying with national electrical safety & structural standards for legal use in China), and voluntary CQC Certification to highlight high energy efficiency, stable performance and long service life for high-end engineering projects.
Q6: Can the product be exported to Europe and North America smoothly?
A6: Yes. With UL, CE, RoHS and REACH certifications, it complies with local safety and environmental laws, with zero compliance barriers for entering the EU, North America and European Economic Area markets.
Q7: Why is it suitable for long-time operation in offices and hotels?
A7: Adopts high static pressure, low noise design; runs stably with low vibration, meets the demand of 24-hour continuous operation, and will not affect the quiet environment of offices and guest rooms.
