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Portable and Topside Fuel Tanks
Did You Know?
In 2011, the marine industry changed
forever when the EPA initiated a series
of regulations to reduce emissions from
marine fuel systems. The major components
of the legislation include the abatement of
permeation and evaporative emissions.
Permeation
Hydrocarbons that are released by gasoline
in a fuel tank and hoses permeate (penetrate)
through the plastic wall into the atmosphere.
The regulations set a maximum permeation
rate for fuel tanks, hoses, and caps.
Evaporative Emissions
Tanks which are vented to the atmosphere
emit hydrocarbons. Prior to 2011, all portable
marine fuel tanks were open-vented to
the atmosphere. Now emissions must be
controlled by caps that do not let the tank
vent until 5 psi or greater has built up inside
the tank.
Not all caps are created equal!
Moeller uses the safest cap available on the
market today. Unlike some caps which do not
vent at all (operators risk being sprayed with
fuel because pressure must be relieved by
unscrewing the cap) Moeller’s cap contains a
feature which safely relieves
system pressure.
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Moeller Marine Products has developed
innovative approaches to meet the 2011
EPA regulations. Using recent advances
in nanotechnology, and borrowing design
strategies from the automotive industry,
Moeller engineers developed two distinct
approaches to barrier technology.
We manufacture our portable tanks from
nano-particle–infused high density
polyethylene to prevent the escape of
hydrocarbons at the molecular level. For
topside tanks, we designed a two-layer tank,
with cross-linked polyethylene on the outside,
and an inner layer of nylon. The two-layer
barrier approach is the design foundation of
our permanent tanks. Since 2009, Moeller
has sold more than 215,000 barrier tanks.
Rely on Moeller to get precisely the fuel
tank you need, regardless of when your
boat was built.