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FAQ's

What is the life expectancy of a fan?

What is airflow?

What is static pressure?

What are air performance curves?

Are your fans dynamically balanced?

What is the system operating point?

What is system impedance?

What are fan laws?

What is motor insulation?

Do plug and cord sets work in 115 and 230 volts?

Can the motor position on the crossflow blower be rotated?

Do the blower motors have agency approval for the US and Canada?

What is the minimum recommended starting voltage for AC blower motors?

Are the blowers date coded?

Can all 60 Hz blower motors operate on a frequency of 50 Hz?

Are the blowers available with European voltages and approvals?

What is a motor?

What is an AC induction motor?

What is a shaded-pole motor?

What is a permanent split capacitor motor?

What are the differences in motor speeds?

How do you change speed motor control?

How can you change the voltage?

How do you change the frequency?

What is a brushless DC motor?

What is a backward curved impeller?

Does Sofasco build fans, blowers or motors with moisture or corrosion protection?

How is fan life defined?

Do you have a thermostatically controlled fan?

How do you read an air performance curve?

What are some general guidelines on mounting fans and blowers?

What is an IP rating?

Can I repair the blower/fan myself?

Does Sofasco sell replacement parts?

How do I tell the airflow direction?

What is the difference between air intake over discharge over struts?

What is an external motor?

What’s the maximum voltage you can apply to a blower?

What is the definition of voltage range?

How does fan and blower performance change at 1,000 and 2,000 meters altitude?

Do you sell explosion-proof fans?

How to choose a suitable fan for our equipment ?

How to measure noise level ?

What's the difference between noise level and abnormal noise ?

How to test abnormal noise ?

How to reduce noise ?

Do fan blade shape and number of blades matter ?

What is a sleeve bearing fan ?

What is a ball bearing fan ?

What is a 3-wire fan ?

What is a hydro bearing?