Circular duct fan is an ideal ventilation equipment with perfect combination of performance and appearance. The new shell and outer rotor motor bring gas flow to the extreme. The fan has the characteristics of compact structure, convenient installation, large air volume, reliable operation, low noise, energy saving and high efficiency.
The circular duct fan with external rotor can be divided into two types: single-phase asynchronous capacitance operation and three-phase asynchronous operation. The rated voltage is 110 v, 120 v, 220 v, 230 v, and the rated power is 50/60 Hz. The size of duct air intake is 100mm-315mm. For the supply, exhaust, return air, and air purification treatment to provide power, ultra-high wind pressure can be tens of meters of long-distance pipeline transmission, a fan control multi-area centralized ventilation, for building, indoor ventilation or pipeline pressurization. It is widely used in hotels, high-level clubs, supermarkets, restaurants, apartments, personal rooms, storage rooms, bathrooms, etc.
The continuous working life of the fan for 24 hours is more than 20,000 hours.
The grounding wire of the motor must be effectively connected with the external grounding device before the fan is used.
The characteristic curve of fan is tested with air guide ring and without net cover.