DKTF - Rectangular Duct Type Fan with External Motor
The DKTF External Motor series is the ideal solution for rectangular duct ventilation systems where the airstream contains substances that could damage a conventional motor — including high-temperature air, oily exhaust, corrosive fumes, or moisture. By positioning the motor entirely outside the airflow, this series provides exceptional motor protection and extended service life, while maintaining the same compact, direct-duct-mounting convenience of the standard DKTF series. Manufactured from high-quality, corrosion-resistant galvanized steel for long-lasting reliability.
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Areas of Use
The DKTF External Motor series is specifically designed for demanding ventilation environments where conventional inline fans with internal motors would be at risk of damage or premature failure. Its unique external motor design makes it the preferred choice wherever the airstream is hot, oily, humid, or chemically aggressive. Use these high-protection rectangular duct fans confidently in:
- Commercial and industrial kitchen exhaust ventilation systems
- High-temperature industrial process ventilation and drying systems
- Oily or greasy exhaust air environments in manufacturing facilities
- Humid environments including swimming pools and wet industrial areas
- Offices, hospitals, and residential buildings requiring silent, reliable ventilation
Key Features & Specifications
External Motor Design for Maximum Protection: The motor is positioned completely outside the airflow path, preventing direct exposure to hot, oily, humid, or chemically aggressive air. This design dramatically extends motor lifespan and eliminates the risk of motor damage from adverse airstream conditions.
Heavy-Duty Galvanized Steel Construction: The robust body is manufactured from high-quality, corrosion-resistant galvanized steel, ensuring exceptional structural durability and long-lasting performance across all installation environments.
Backward-Curved Radial Impeller: Equipped with high-efficiency, backward-curved radial blades that deliver powerful, stable airflow and high static pressure across a wide range of operating conditions — even in high-resistance duct systems.
Direct Inline Duct Connection: Designed for seamless integration directly into existing rectangular ductwork in any required position, without the need for large bends, conversion pieces, or complex structural modifications.
Suitable for High-Temperature & Aggressive Airstreams: The external motor configuration makes this series the correct choice for ventilation systems handling air temperatures or contaminants that would normally preclude the use of a standard internally-motored fan.
Versatile Supply & Exhaust Applications: Equally effective in both exhaust and supply ventilation roles across industrial, commercial, and residential settings, wherever motor protection from the airstream is a design requirement.
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