Today's Message Index:
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1. 03:43 AM - Coalescing Filters (Craig Payne)
2. 05:54 AM - Re: Coalescing Filters (Warren Hill)
3. 02:17 PM - Re: Coalescing Filters (Walter Lannon)
Message 1
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| Subject: | Coalescing Filters |
Warren has listed some good stuff about air system *stuff*. During Florida
summers the air-water filter must be serviced at 6-8 hour intervals. We
should get our Seaplane wings for all the flying in the soup.
I sold my airplane before I could implement some other way to get the water
out of the system. There may be some potential in "coalescing filters" that
are used in high pressure gas systems to eliminate moisture. Not cheap, but
they are made from stainless and ceramic components.
My plan was to place between the "Deposit Bottle" and the water-air filter.
Many come with a petcock drain as well. Just something I never got around
to doing.
Craig Payne
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Message 2
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| Subject: | Re: Coalescing Filters |
Craig,
Great idea! Looking at what=99s commonly available, many appear to
be for relatively low pressure systems. Of course, what we do is above
700 psi.
Here is a link to a company that makes this type of high pressure
speciality filter.
http://www.parker.com/Literature/IGFG/PDF-Files/HighPressure.pdf
Several of the smaller ones look like they have potential. Of these,
which is option do you think might be closest to what you had in mind?
Warren Hill
> On Jan 28, 2019, at 4:42 AM, Craig Payne <yakman285@gmail.com> wrote:
>
> Warren has listed some good stuff about air system *stuff*. During
Florida summers the air-water filter must be serviced at 6-8 hour
intervals. We should get our Seaplane wings for all the flying in the
soup.
>
> I sold my airplane before I could implement some other way to get the
water out of the system. There may be some potential in "coalescing
filters" that are used in high pressure gas systems to eliminate
moisture. Not cheap, but they are made from stainless and ceramic
components.
>
> My plan was to place between the "Deposit Bottle" and the water-air
filter. Many come with a petcock drain as well. Just something I never
got around to doing.
>
> Craig Payne
>
>
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Message 3
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| Subject: | Re: Coalescing Filters |
Hi Craig;
Could not agree more. Air filter servicing periodicity is a function of o
perating time and area humidity and I believe there is a fairly reliable me
thod of determining what that periodicity should be.
The second =9Cdeposit bottle=9D is in the brake system and I pr
esume it=99s primary purpose is to keep moisture out of the brake bla
dders which (if allowed
to accumulate) could result in a brake frozen on landing under the right ci
rcumstances.
Since this deposit bottle is located at the lowest point in the system (oth
er than the brakes) it would seem that any trace of moisture here would ind
icate the distinct possibility of contamination throughout the entire syste
m.
Over the last few years I have monitored that situation and determined that
the first trace of moisture shows up between 12 and 13 hours of operation
and the air filter desiccant is fully saturated.
As a result my air filter servicing periodicity is 10 to 12 hours and I am
in a relatively =9Cdry=9D area (extreme Northern end of the Son
ora Desert =93 which after 100 years of irrigation really does not lo
ok like desert any more). I think Warren is in a real desert area and his
periodicity should be considerably longer. But for the folks in Florida (o
r even Ontario!) I would suggest they make an effort to routinely monitor t
hat second =9Cdeposit bottle=9D and determine their periodicity
, the target being =9Cno trace=9D of moisture.
Cheers;
Walt
From: Craig Payne
Sent: Monday, January 28, 2019 3:42 AM
Subject: Yak-List: Coalescing Filters
Warren has listed some good stuff about air system *stuff*. During Florida
summers the air-water filter must be serviced at 6-8 hour intervals. We sho
uld get our Seaplane wings for all the flying in the soup.
I sold my airplane before I could implement some other way to get the water
out of the system. There may be some potential in "coalescing filters" tha
t are used in high pressure gas systems to eliminate moisture. Not cheap, b
ut they are made from stainless and ceramic components.
My plan was to place between the "Deposit Bottle" and the water-air filter.
Many come with a petcock drain as well. Just something I never got around
to doing.
Craig Payne
Virus-free. www.avg.com
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