Thats entirely untrue (Im being 'kind' here)

If you generate a bacterial slime/gel, that slime will 'de-polarize'
and block the flow based on surface area. Just compare the surface of
an open spaced (pleats not toughing together) pleated filter versus the
surface area of a cylindrical paper roll.

Also show me ANY data that you have on removal capacity on a per weight
basis vs. particle retention for a "roll of paper" filter.
You can of course document to an industry wide standard OSU F-2 test
stand test regime ???? I think not.
Do you have any retention efficiencies versus face velocity or
gpm/psid??
Whats the wet-strength of a roll of Charmin? Bounty? What is thier
average retention rating?


If you cant, its just SNAKE-OIL.







In article , Keith
wrote:

You need to look at depth filtration for polishing vs. surface filtration
like the Racors. They will clog up very fast if you have dirty fuel. See the
link I posted earlier, and take a look at depth filters like the GCF F-1 or
Jr.

"Doug Dotson" wrote in message
...
I don't have a filter problem, I have a pump question.

Doug

"Lew Hodgett" wrote in message
hlink.net...

"Doug Dotson" writes:
I am designing a fuel polishing and transfer system. My thought
is to use valves to route fuel from any tank to any tank. No
problem with that part. I want to be able to just transfer fuel
or switch in a filter to polish the fuel while transferring. Since
I can select the same tank for source and destination, I can
polish fuel in place as well. The problem comes with the selection
of a pump. I was looking at a Groco or Jabsco pump which seems
good for transfer purposes, but way exceeds the flowrate of the
filter when polishing. A Walbro fuel pump (which I have as a priming
pump now) seems like a good fit for polishing (33 GPH) but will be
slow
when just transferring fuel. What happens when a 5.5 GPM pump
(Jabsco) is pushing fuel through a filter rated at 60 GPH (RACOR 500)?

Have built the system above which BTW, uses a lot of 1/2" bronze ball
valves.

You solve the filter problem in a straight forward fashion.

Multiple filters (Larger than 500) in parallel to reach at least 60 GPH.

I'd built in a safety margin and shoot for at least 75 GPH.

HTH


--
Lew

S/A: Challenge, The Bullet Proof Boat, (Under Construction in the
Southland)
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