The
unique design of the Advanced
Technology Fractionator
(ATF) oxygen module eliminates
dozens of components and
interconnections found
in conventional PSA systems.
A patented single rotary
distribution valve built
into the ATF module is
continuously rotated at
low speed by a small motor.
The valve is maintenance
free, self-cleaning, insensitive
to contamination, and
invulnerable to wear.
It sequentially directs
the flow of compressed
air to a group of four
sieve beds (adsorption),while
at the same time another
four beds are purged into
the atmosphere though
the valve (desorption).
The remaining four of
the twelve beds are interconnected
through the valve to equalize
pressure as the sieve
beds sequentially transition
between adsorption and
desorption. In contrast
to a conventional PSA
system, the small amplitude
pressure swings generated
by the ATF's twelve sieve
beds eliminate loud noise
pulses,eliminate the need
for a pressure regulator,
and reduce compressor
wear. |
