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I know of a Co. in FL. that makes an all chemical tolerant duplex valve (brass w/nylon cups) for aprox. $180 shipped to your home, he has been using the DV for aprox. 7 years now, mine has been wet with auto fuel/alc./2 cyc. mix, in an RV6A Rotary for aprox. 2 years now being changed from tank-to-tank monthly. I will find his info. & post tomorrow? David R. Cook RV6A Rotary freeeeezing in MI.
-------------- Original message --------------
From: Charlie England <ceengland@bellsouth.net>
> There's that, and the fact that in today's unbelievably tight credit
> market, you might not be able to get a loan for one. ;-)
>
> Charlie
>
> Bill Schertz wrote:
> > Consider using an ANDAIR duplex valve. It takes fuel from one tank and
> > returns it to the same tank. Turn it and it takes and returns to the
> > other tank. Simple in operation, but requires more plumbing.
> > Bill Schertz
> > KIS Cruiser #4045
> > N343BS
> > ----- Original Message ----- From: "randy echtinaw"
> >
> > To: "Rotary motors in aircraft"
> > Sent: Tuesday, December 02, 2008 6:50 PM
> > Subject: [FlyRotary] R
e: Fuel system
> >
> >
> >> Al,
> >> That was my first thought to just drain the smaller tank into the
> >> larger with a simple 1/4 turn on/off but I would have to run the
> >> main at least 1/2 empty for this to work. I cannot fly ackro with
> >> less than 6 gallons in the main tank. I cannot fly ackro at all with
> >> fuel in the smaller tank so by the time the smaller tank emptied I
> >> would have little fuel remaining in the larger tank. I even
> >> considered a small transfer pump to fill the larger tank but I am
> >> again creating complexity.
> >> All input here is welcome :))
> >> Thanks,
> >> ---------------------------------
> >>
> >> On Dec 2, 2008, at 7:39 PM, Al Gietzen wrote:
> >>
> >>> Randy;
> >>>
> >>> Is
the positioning of the tanks such that you could gravity feed the
> >>> small
> >>> tank into the big tank? Then you could return to the larger tank - and
> >>> eliminate the selector valve.
> >>>
> >>> Al G
> >>>
> >>> -----Original Message-----
> >>> From: Rotary motors in aircraft
> >>> [mailto:flyrotary@lancaironline.net] On
> >>> Behalf Of randy echtinaw
> >>> Sent: Tuesday, December 02, 2008 3:59 PM
> >>> To: Rotary motors in aircraft
> >>> Subject: [FlyRotary] Fuel system
> >>>
> >>> Gentlemen,
> >>> Because a large majority of homebuilt problems are fuel related I
> >>> am trying to make my system as simple as possible. This is a biplane
> >>> with a 20 gal. and a 10 gal. tank in front of t
he inst. panel, RX-8
> >>> engine.
> >>> The only "known" problem I have at the moment is my fuel return. I
> >>> would like it to return to the main tank only. This would mean burning
> >>> off 2-3 gallons from the main tank before switching to the 2nd tank.
> >>> But, this might mean I am setting myself up for a future "pilot error"
> >>> in fuel management. If I return to both tanks I would need another
> >>> selector and cockpit control which is making the system more
> >>> complicated and, again, potential "pilot error." So, suggestions . . .
> >>> Thank you very much,
> >>> Randy
>
>
>
> --
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