Cooling Fans mainly include axial flow fans and centrifugal fans, and axial fans are divided into DC axial fans and AC axial fans.

With the increasing use of cooling fans, more and more fans appear on the market. However, the quality of these fans varies from good to bad. If you want to buy a good fan, you must know how to distinguish the fake and inferior of the fan.

So how to judge the fake and inferior of the fan?

1. Whether the fan performance meets the nominal wind pressure, the nominal performance will reach the pumping air required by the actual system;

2. The efficiency of fan is high, the wind turbines are high, and the efficiency of fan is low power consumption;

3. The vibration value of the bearing site is long, the vibration high blower bearing is easily damaged, and the vibration value is low;

4. The noise of running, noise is environmental pollution, affecting work sentiment, also energy consumption;

5. Does it take into account the convenience of maintenance, the fan is equipment, requires regular maintenance, fuel holes, drains, maintenance holes, bearings, etc.

6．In general, look at the appearance can see that the fan is good, the more reliable, the quality of the wind turbine of the detail is more reliable;