1. This fan is made of single suction. The machine numbers are 4, 4.5, 5, 5.6, 6.3, 7.1, 8, 9, 10, 11.2, 12.5, 14, 16.
2. This fan can be made into two forms: clockwise rotation and counterclockwise rotation. Looking at the fan from the transmission part, if the impeller rotates clockwise, it is called a right-handed fan, represented by right, and vice versa, it is called a left-handed fan, represented by left.
3. The outlet position of the fan is represented by the outlet angle of the casing. Both right-handed and left-handed fans can be made into six angles: 0°, 45°, 90°, 135°, 180°, and 225°. If you need other machine numbers or other angles, our factory has the strength to design and manufacture for you "order dishes" until you are satisfied.