The DWT Series Centrifugal Roof Fan is designed for roof-mounted ventilation and air exhaust in commercial, industrial and public buildings. Featuring a centrifugal impeller and a weather-resistant housing, it efficiently removes indoor hot air, stale air and unwanted fumes while supporting continuous air circulation. Its compact roof-mounted structure saves indoor space, while the optimized aerodynamic design ensures stable airflow and reliable operation. The fan is suitable for various building ventilation systems and can be configured according to different airflow, pressure and installation requirements.
1. Efficient Centrifugal Airflow
The centrifugal impeller design provides effective air extraction and pressure performance for various roof ventilation applications.
2. Weather-Resistant Structure
The protective outer housing helps shield internal components from rain, dust and outdoor environmental exposure.
3. Space-Saving Roof Installation
Roof-mounted design helps save valuable indoor space and provides a practical solution for centralized building exhaust systems.
4. Stable and Reliable Operation
A properly matched motor and impeller assembly supports consistent performance under specified operating conditions.
5. Flexible Application Options
Available in different specifications and configurations to accommodate varying airflow, pressure and building ventilation requirements.
Industrial Buildings
Manufacturing plants and industrial workshops
Warehouses and logistics centers
Machinery rooms and equipment rooms
Factories and production facilities
Industrial exhaust ventilation systems
Commercial Buildings
Shopping malls and supermarkets
Office buildings and business centers
Hotels and restaurants
Exhibition centers and conference halls
Large public buildings
Public and Infrastructure Facilities
Schools and educational institutions
Hospitals and healthcare facilities
Sports centers and gymnasiums
Transportation terminals and stations
Underground parking facilities with suitable duct arrangements
Specialized Ventilation Applications
Indoor hot air extraction
General building exhaust ventilation
Kitchen and service-area exhaust systems
Roof-mounted mechanical ventilation
Industrial heat and stale air removal
| Model | Speed(r/min) | Motor power(kw) | Total pressure(pa) | Airflow(m³/h) |
| DWT-3 | 1450 | 0.75 | 122-220 | 878-1253 |
| DWT-3.5 | 1450 | 1.1 | 166-299 | 1395-1990 |
| DWT-4 | 1450 | 1.1 | 298-412 | 1887-2677 |
| DWT-4.5 | 1450 | 1.1 | 231-495 | 2966-4514 |
| DWT-5 | 1450 | 2.2 | 378-615 | 4068-6113 |
Q1: What is a centrifugal roof fan?
A: A centrifugal roof fan is a roof-mounted ventilation device that uses centrifugal force to move air. It is commonly used to remove indoor hot air, stale air and unwanted fumes from commercial and industrial buildings.
Q2: What are the advantages of a centrifugal roof fan compared with an axial roof fan?
A: Centrifugal roof fans generally provide higher pressure capabilities and are suitable for ventilation systems with greater airflow resistance. Axial roof fans are commonly used for applications requiring large airflow with relatively low resistance. The appropriate type depends on the actual system requirements.
Q3: Can the DWT series be installed outdoors?
A: Yes. The DWT series is designed for roof-mounted installation. The housing material, surface treatment, motor protection rating and electrical components should be selected according to the local climate and outdoor operating conditions.
Q4: Can the fan operate continuously?
A: The fan can be selected for continuous operation under its specified operating conditions. Motor specifications, ambient temperature, installation conditions and maintenance requirements should be confirmed before operation.
Q5: Can the DWT series be customized?
A: Yes. Customized configurations can be discussed according to airflow, total pressure, motor power, voltage, frequency, installation dimensions and environmental requirements.
Q6: Is the fan suitable for corrosive or high-temperature gases?
A: Standard configurations are generally intended for normal ventilation applications. For corrosive gases, high-temperature air or special industrial environments, suitable materials, motor arrangements and protective measures must be confirmed before selection.
Q7: Does the DWT series support smoke exhaust applications?
A: Certain specially designed roof fans may be suitable for smoke exhaust applications. However, standard ventilation models should not automatically be considered fire-rated. Please confirm the required fire resistance rating, operating temperature, duration and applicable certifications before ordering.
Q8: What accessories are available?
A: Depending on the selected model, optional accessories may include roof mounting bases, flexible connectors, protective guards, vibration isolators, weatherproof components and electrical control systems.
Q9: What is the typical delivery time and minimum order quantity?
A: Delivery time and minimum order quantity depend on the selected model, motor configuration, customization requirements and order quantity. Please contact us for detailed production and delivery information.
