Design AW 78-24-28. These systems are standard with the
hydrant and aircraft direct fueling systems. In addition to
the product recovery tank(s) for the facility, provide a
product saver tank with electric pump for each vertical
storage tank storing aviation turbine fuel. A product saver
tank is a small (less than 100 gallons (380 L)) aboveground
tank piped and valved to allow drawing water from the bottom
of the storage tank and returning the product after the water
has separated and been sent to the product recovery tank.
Registration. Register all tanks with the
appropriate state and local agencies as required.
ABOVEGROUND HORIZONTAL STORAGE TANKS
General Design Considerations. If small factory-
built aboveground storage tanks are required, use horizontal
tanks. Limit tank diameter to 12 feet (3.7 m) or less and
capacity to less than 1,200 barrels (191 m3). Require tank to
be of welded steel construction in accordance with UL 142.
Steel tanks with steel outer wall containment are permitted if
installed in conformance with NFPA 30 and local/state
a) Install the tank so that the bottom slopes
downward toward one end at a slope of 1 percent. Locate
transfer pumps or suction piping at the low end of the tank.
b) Provide protective bollards for tanks not
surrounded by a dike.
c) Provide sumps, drain lines, and water drawoff
lines in each tank. For aviation fueling systems, arrange
piping so that the fuel in the tanks may be recirculated
through the filter/separators.
d) Provide steel tanks with steel saddles or skids
in accordance with UL 142. Limit the height of steel skids or
saddles to 12 inches (300 mm) in height to avoid the need for
fireproofing. Mount steel supports on a reinforced concrete