NVDR
RECTANGULAR IN LINE DUCT FANS BACKWARD CURVED

Fan Components and Material Properties
Rectangular bodies and Fans are manufactured from galvanized steel sheets. All models have an external rotor motor with a closed structure and have air transport at max. 40ºC. 
Fan Structure
It is designed to work between the rectangular channel. The fan blades are aerodynamically curved and provide regular flow. The fans are composed of backward sloping and infrequently arranged fins. 
Benefits
The swing-out lid allows the product to be maintained effortlessly without removing the fan. Thanks to the aerodynamic wing structure, they work quietly. Speed can be adjusted with speed control devices.
Speed Control 
Optional control devices can be provided. Speed control can be done with linear voltage regulator in 1~ phase products (see BSC accessory). Speed control with frequency inverter can be done in 3~ phase products (see BSC-F accessory).
Usage Areas
It is designed to meet medium and high volume ventilation requirements in rectangular duct systems where the application area is limited.