Natural Smoke Ventilation Axial Fan
LKM type fire protection high-temperature smoke exhaust axial flow fan, its basic form is axial flow structure, adopts high-temperature resistance motor, and is equipped with a special motor cooling system. The product has been approved by the National Fire Equipment Supervision and Quality Inspection Center according to GA211-1999 "Fire Exhaust Fan High temperature resistance test method" High temperature resistance test, continuous operation for more than 60 minutes at a medium temperature of 300 ℃, continuous operation at a temperature of 100 ℃ for 20 hours/time without damage, can be used for ventilation and smoke exhaust.
According to the installation method: horizontal type and roof type (W type). According to air volume and air pressure: normal pressure type has type Ⅰ and type Ⅱ (two speed); medium pressure type (impeller is diagonal flow type) has type Ⅲ and Ⅳ (two speed); low pressure type has type D1 and D2 According to the speed regulation mode: single speed, double speed,frequency conversion (using frequency conversion motor, equipped with frequency conversion controller, implement stepless speed regulation to adapt to different working conditions, it is recommended to adjust the frequency to be locked at 25Hz~50Hz).
In order to meet the noise requirements of different places, the fan can be equipped with mufflers of different lengths, and can also be made into a covered type.
Fans can be widely used in high-rise buildings, ovens, underground garages, tunnels and other ventilation and smoke exhaust places