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2. The fan is equipped with a manual brake device.
3. The mid and rear guide vanes of the fan use a plate-type twisted fixed structure, which alters the airflow pre-rotation at the impeller's outlet and inlet flow field while also supporting the rotor.
4. The fan uses rolling bearings with grease lubrication. A platinum resistance primary instrument is installed on the bearing housing, with a temperature inspection instrument provided. Additionally, a vibration monitoring instrument can be optionally configured to ensure the fan's smooth and stable operation.
5. The fan can achieve a reverse airflow of more than 60% across the full performance range.
6. The blades are designed with a twisted airfoil shape, and the installation angle is steplessly adjustable between 20°and 50°.
