BKKF - SQUARE DUCT FANS BACKWARD CURVED

BKKF is a BVN square duct fan with a backward-curved impeller. According to the manufacturer, it is designed for medium and high ventilation volumes in duct systems where installation space is limited.

Construction

• Double-skin galvanized panels with heat and sound insulation;
• Galvanized steel impeller;
• Closed external-rotor motor, IP44, insulation class F;
• Swing-out lid allows servicing without removing the fan; removable panels make it easy to change the air direction;
• Speed control with a voltage regulator (BSC) on single-phase and a frequency inverter (BSC-F) on three-phase models.

Specifications (manufacturer data)

• Sizes: 400 and 450 (1~230 V), 500 and 560 (3~400 V);
• Airflow: 4,200 to 9,800 m³/h (50 Hz);
• Maximum static pressure: 460-920 Pa;
• Power: 380-1,750 W; sound level 45-55 dB(A);
• Max. air temperature: 40°C.

BKKF is for general ventilation. For hot and greasy kitchen air (up to 120°C, motor outside the airflow) see BKEF-R. More models: duct fans. Manufacturer catalogue (BVN)