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Thread Number: 9862
Kirby Fan Question |
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| Post# 107541 9/3/2010 at 09:34 (4,983 days old) by eurekastar (Amarillo, Texas) | ||
I have vacuums both with the older aluminum fan and the newer lexan/kevlar fan. The aluminum fan certain has a distinctive sound, reminiscent of a jet. However, I'm just curious if there is a difference in suction/airflow produced by each fan. Is one greater than the other? This is the fan that came out of my Model 515.
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| Post# 107543 , Reply# 1 9/3/2010 at 10:17 (4,983 days old) by joe22 () | ||
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i hope you put the metal fan back in the 515, ;-)) | ||
| Post# 107545 , Reply# 2 9/3/2010 at 10:31 (4,983 days old) by eurekastar (Amarillo, Texas) | ||
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| Post# 107556 , Reply# 5 9/3/2010 at 13:51 (4,983 days old) by joe22 () | ||
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there has to be a way to measure the airflow through a kirby, some sort of a meter thing | ||
| Post# 107560 , Reply# 7 9/3/2010 at 15:03 (4,982 days old) by kirbfan94 () | ||
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The metal fan moves more air, The weight diffrence isint enough to make the motor spin that much slower. Deeper, Straighter blades=more airflow. | ||
| Post# 107561 , Reply# 8 9/3/2010 at 15:17 (4,982 days old) by kirbymodel2c (Nottingham, England) | ||
ummm
To be honest I think the newer type of fan is better from a performance angle.Please bear in mind that the plastic fans on the newer models was designed by kirby with help from NASA with the help on computer programs like CAD etc and the metal ones were not. So I think its unlikely that the metal fan will out perform the new style fan. But I do like the metal fan on the older kirby's. by the way. James:o) | ||
| Post# 107566 , Reply# 9 9/3/2010 at 16:50 (4,982 days old) by electrolux~137 () | ||
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I prefer the metal fans as well, and all my Kirbys have them. There is a distinct difference in the sound. | ||
Post# 342604 , Reply# 10 2/1/2016 at 11:01 (3,006 days old) by KirbyCollector  (Columbus Ohio USA) |
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My perspective on Kirby fans
I have done many tests and comparisons between ten blade aluminum fans and eleven blade polymer fans and from what I've seen and experienced, the aluminum fan creates just a little more suction and airflow. When I did a comparison between a D50 with a newer fan and a D80 with older fan, the D80 won the baking soda test. I then switched the fans so the D50 had the older fan and the D80 had the newer fan. The D50 won that time. I even did my own unique metal fan retro fit in my G4. I did a baking soda test between the retro fit G4 and a Diamond Edition. The G4 cleaned up way better than my Diamond. I switched the fans. That time the Diamond won. I believe the deeper, and straighter blades are what creates more airflow and suction.
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| Post# 342608 , Reply# 11 2/1/2016 at 12:19 (3,006 days old) by sptyks (Skowhegan, Maine) | ||
 Kirby teamed up with NASA to produce a new fan which is both stonger
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| Post# 342768 , Reply# 13 2/3/2016 at 12:43 (3,004 days old) by sptyks (Skowhegan, Maine) | ||
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| Post# 343018 , Reply# 15 2/6/2016 at 15:10 (3,000 days old) by wyaple (Pickerington, OH) | ||
CFM Tests of Vacs From 1980-2013 
Here's the link to my extensive CFM tests using a GM8901 anemometer.
CLICK HERE TO GO TO wyaple's LINK | ||
| Post# 343019 , Reply# 16 2/6/2016 at 15:12 (3,000 days old) by wyaple (Pickerington, OH) | ||
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Water Lift Tests | ||
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