Please explain beta ratios. I'm lost.

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Before anyone asks, yes I did lots of research and searched well on this forum. I'm still thoroughly confused. All I see are either terrible explanations of single numbers ("Beta Ratio 2"), or formulas without explanation at all ("2/20=6/20"). All I know is my math teacher would have had a fit if I wrote 2/20=6/20. Can anyone help decipher WIX's information of these 2 filters. Everyone says they are interchangeable, but there are definitely some different numbers, therefore I don't think that's accurate. I do understand what both represent, and the principles of what they do, just looking to understand how to interpret the numbers. Edit: Also, what is this Nominal Micron Rating at the bottom?

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Originally Posted by tony1679
All I know is my math teacher would have had a fit if I wrote 2/20=6/20. Can anyone help decipher WIX's information of these 2 filters.
WIX uses their own non-industry beta ratio nomenclature. That's what screws up trying to understand WIX beta ratio numbers, because it doesn't follow what you're gonna find searching the internet. 2/20=6/20 The two numbers on the left of the equals sign are the Beta Ratios: Beta 2 = 50% efficient Beta 20 = 95% efficient The two numbers on right of the equals sign are the corresponding particle sizes. The 2 in "2/20" goes with the 6 in "6/20", so it means 50% efficient at 6 microns. The 20 in "2/20" goes with the 20 in "6/20", so it means 95% efficient at 20 microns. Think of it as: Beta 2/Beta 20 = 6 microns/20 microns or 50% at/95% at = 6 microns/20 microns
 
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Originally Posted by ZeeOSix
Originally Posted by tony1679
All I know is my math teacher would have had a fit if I wrote 2/20=6/20. Can anyone help decipher WIX's information of these 2 filters.
WIX uses their own non-industry beta ratio nomenclature. That's what screws up trying to understand WIX beta ratio numbers, because it doesn't follow what you're gonna find searching the internet. 2/20=6/20 The two numbers on the left of the equals sign are the Beta Ratios: Beta 2 = 50% efficient Beta 20 = 95% efficient The two numbers on right of the equals sign are the corresponding particle sizes. The 2 in "2/20" goes with the 6 in "6/20", so it means 50% efficient at 6 microns. The 20 in "2/20" goes with the 20 in "6/20", so it means 95% efficient at 20 microns. Think of it as: Beta 2/Beta 20 = 6 microns/20 microns or 50% at/95% at = 6 microns/20 microns
Thank you. We have a winner. Amazing how I couldn't find this anywhere... Assuming there's cleaeance for both, when comparing a WIX 57035 and a WIX 51348, why would the 57035 be the preferred filter? They're worse at their job and far more expensive. shrug
 
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good explanation + i seen a lot of great info on machinery lubrication but yours is better! thanks Z06
 
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