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...snipped
One point that I should clarify, so that my ruminations here would not
seem so pointless. I've been considering a returnless system. A single
tank is located high in the back of the airplane. If I locate the
pumps, filters and gascolator back under the tank (advantageous for W&B
and positive head to the pumps), and just run the single supply line up
front, then I would have to find a valve that would reliably operate
under elevated pressures. But having a pump that blocks flow when it
isn't running immediately begs the question of, "What is the point of
the valve?" Not thinking for a moment that I know it all, I present the
question here.
..snipped
Ball type valve will always work - at least under the pressures you will be
using in a gasoline engine application!
As mentioned, what if you can't shut off the pump, because your the
electrics just got burned?
"Putting out fire with gasoline ?!!"
Thomas J. (listening to a David Bowie classic..:))
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