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Time：2021-08-19Views：0
When choosing a DC axial fan for the first time, because there is no concept of the air volume and noise of the DC axial fan, and the price of the DC axial fan may be unclear, so when choosing a DC axial fan, there is no way to start. If this is the case, there is no need to do it, as long as three steps are easy to do
Step 1: Choose a DC fan with the largest size that you think can be installed, determine the voltage, and ask the DC axial fan supplier to do a test to see the effect. If the sample is not suitable, confirm the relevant parameters through the following methods
Because the speed of the fan is proportional to the voltage, increase the voltage by 20% or decrease by 50%. If it is adjusted to which voltage value, it is possible to test the air volume and noise. Note the voltage value at this time, please The supplier designs a 12V fan according to the speed and air volume of this voltage
Step 2: Redesign the DC axial fan according to the parameters confirmed by the customer. (Of course, if the first step fails to achieve the desired effect in any way, the fan size needs to be changed. At this time, you can discuss the new size with the fan supply and follow the first step)
Step 3: According to the product's warranty time and the harsh environment, choose what kind of bearing to use, which directly affects the cost of the Dc axial fan. The life of oil-impregnated bearings is 20,000 hours under normal temperature and normal conditions, and the life of double ball bearings is 50,000 hours under normal temperature and normal conditions. In high temperature and dusty environments, the life of oil-impregnated bearings decreases faster than that of double ball bearings. Of course, the price Also cheaper
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