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Duplex Fuel Selectors are valves that have two seperate compartments so that two independent fuel
lines can be switched simultaionusly. This makes them ideal for fuel injected engines where there
needs to be a return line. The great aspect of these valves is that the fuel can be returned to the
same tank from which it was drawn thus preventing dumping fuel overboard. There are 2 types
produced by Andair.
FS20-20 Duplex Fuel Selector
This Duplex fuel selector is a 3/8" feed and return valve. Therefore allowing to switch between two fuel tanks (LEFT - RIGHT) of a fuel injected engine of up to 200 HP.
FS25-20 Duplex Fuel Selector
This particular Duplex valve has a 3/8" compartment at the top of the valve, and a 1/2" section
at the bottom. The 1/2" part would be used for the feed and the 3/8" for the return.
The FS20-20 & FS2520 Duplex Selectors are supplied with a black anodised engraved face plate and a larger
red lever. (Slightly larger than the standard 3/8" valves) and they are all adaptable to take the
extension equipment.
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