Next message: Kurt Reno: "T&T: Propeller balancing"
I think I posted this years ago when this type of subject came up. I
questioned the micron rating of the CAV filters that most of us use and Wix
says their filter is 10 micron (part # 33166) and Lucas/Delphi claims theirs
(part # 7111-296) is 5-7 micron. Wix techs dispute Lucas... Probably Racor
would have their own spin on the subject..
Below are the emails I received FYI.
Good luck,
Phil
(Contact From WIXFILTERS)
>Our 33166 part number is a direct cross reference to the Lucas 7111-296
> part number. This is the same part number used by C.A.V. who invented
this
> type of filter. Their filter contains media that is rated at 10 micron
> like ours. It does not have 2 micron media. A particle that is 1
> micrometer (micron) in diameter is .000039" across. The average human
hair
> has a diameter of 70 microns and the human eye can not see anything under
> 40 microns without magnification. The difference between 2 and 10 microns
> is measurable in the lab but is real life it makes very little, if any.
> performance difference.
>
> Thank you for your inquiry.
>
> Chris Greeson
> Technical Service Representative
(Contact from Lucas/Delphi)
> The Delphi HDF296 has a micron rating of between 5-7 micron (average
> contaminant size in testing is 6.9 micron). Its average retention is not
> less than 85% and is normally around 95%. The rolled paper-type design of
> the filter was pioneered by Delphi, and it still remains the benchmark for
> this kind of filter.
>
> I hope that this answers your question, and if you have any further
queries,
> please do not hesitate to contact me.
>
> Kind regards
>
> Ian Girle
> Product Manager
> Filtration
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