1. The performance indicators such as flow rate, pressure, efficiency, and noise of the fan should comply with national standards and user requirements.
2. The transmission part of the fan should be reliable and not easily damaged, and should have a self-lubricating or lubrication device to facilitate maintenance.
3. The blades and casing of the fan should have good corrosion resistance and wear resistance to extend their service life.
4. The cooling system of the fan should be able to effectively reduce the heat generated during operation and ensure the stability of the fan in high-temperature environments.
5. The inner and outer surfaces of the fan should be flat and smooth to reduce wind resistance and noise.
6. The fan should have the characteristics of easy start and stop, reliable control system, and high safety.
7. The appearance of the fan is beautiful, the structure is compact, the floor area is small, and it is easy to install and maintain.
