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Test Methods And Precautions Of Stainless Steel Centrifugal Fan

Stainless steel centrifugal fan is a kind of equipment with complex structure, mainly including air inlet, 

casing, impeller, motor and air outlet. In different states, the effect of stainless steel centrifugal fan is different. 

Therefore, the operation conditions of different parts are not the same, the effect of stainless steel centrifugal fan 

will be affected.Stainless steel centrifugal fan can be adjusted to ideal state from many aspects.

When testing the stainless steel centrifugal fan, please carefully read the product manual and check whether the 

wiring mode is consistent with the wiring diagram; carefully check whether the working voltage of the fan power 

supply meets the requirements, whether the power supply is reversed or reversed, and whether the capacity of 

each part of the distributor meets the requirements.

During the test, there shall be no less than two people, one to control the power supply and one to observe the 

operation of the fan. In case of any abnormality, the fan shall be shut down immediately for inspection.

 First, check whether the rotation direction is correct. After the stainless steel centrifugal fan is started and operated, 

check whether the operation current of each phase is balanced and whether the current exceeds the rated current

 immediately. In case of any abnormality, shut down the machine for inspection. After 5 minutes of operation, 

stop the machine to check whether there is any abnormal phenomenon, and restart the machine after confirming 

that there is no abnormal phenomenon.

When testing the two-speed stainless steel centrifugal fan, start the fan at a low speed first and check whether

 the rotation direction is correct; when starting at a high speed, stop the fan first and then start it to prevent 

high-speed reverse, switch trip and motor damage. When the normal speed is reached, the input current of the 

fan shall be measured to see if it is normal. The operating current of the stainless steel centrifugal fan shall not 

exceed the rated current. If the working current exceeds the rated current, check whether the voltage provided is normal.

The motor power required for stainless steel centrifugal fan refers to the high power required for stainless steel 

centrifugal fan and air box to fully open the air outlet under certain working conditions. There is a risk of damage 

to the motor if the air intake is fully open. When testing the fan, close the valve on the inlet and outlet pipes of 

the fan, gradually open the valve after operation until the required working state is achieved, and pay attention 

to whether the operating current of the fan exceeds the rated current.

Betty Cao

Purchasing Consultant




WhatsApp:+86 13906567730


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